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# Trigonometric Ratios

## angle

Asked by 12th February 2009 9:39 PM
Answered by Expert

## If 7tan Φ = 4, then find the value of 7sinΦ - 3cos Φ                                                                —————————                                                                7sinΦ + 3cos,Φ  .

Asked by pdcavita 18th November 2017 11:27 AM
Answered by Expert

## If √3 tanΦ = 3sinΦ , then find the value of sin²Φ - cos²Φ .

Asked by pdcavita 18th November 2017 11:35 AM
Answered by Expert

## If sec A=17/8 , show that 3-4 sin ²A/4 cos² A - 3 = 3- tan² A /1-3 tan² A.

Asked by pdcavita 18th November 2017 12:56 PM
Answered by Expert

## Evaluate sec² (90°-Φ) - cot²Φ / 2 (sin²25° + sin²65°)

Asked by pdcavita 18th November 2017 1:07 PM
Answered by Expert

## Prove that sinA - cosA +1/ sinA + cosA - 1 =1/secA - tanA.

Asked by pdcavita 18th November 2017 1:13 PM
Answered by Expert

## Ohh.... Tq Q1. Prove that( cosecA - sinA) (secA - cosA) = 1/ tanA - cotA.

Asked by pdcavita 19th November 2017 2:11 PM
Answered by Expert

## The angle of elevation of the top of a tower from certain point is 30°. If the observer moves 20m towards the tower, the angle of elevation of the top increases by 15°. Find the height of the tower.

Asked by pdcavita 19th November 2017 2:18 PM
Answered by Expert

## The angle of elevation Φ of the top of a lighthouse as seen by a person on the ground is such that tanΦ = 5/12. When the person moves a distance of 240m towards the lighthouse, the angle of elevation becomes Φ, such that tanΦ=3/4. Find the height of the lighthouse.

Asked by pdcavita 19th November 2017 2:26 PM
Answered by Expert

## From a window 15m high above the ground in a street,  the angles of elevation and depression of the top and foot of another house on the opposite side of the street are 30° and 45°, respectively.  Show that the height of the opposite house is 23.66 m. (take √3 = 1.732)

Asked by pdcavita 19th November 2017 2:32 PM
Answered by Expert

## The length of the shadow of a tower standing on ground level is found to be 2x m longer when the sun's altitude is 30° than when it was 45°. Prove that the height of tower is (√3 + 1)x m.

Asked by pdcavita 19th November 2017 2:39 PM
Answered by Expert

## Sunita is an electrician and she has to repair an electric fault on a pole of height 5m.  She needs to reach to a point on the pole 1.3m below the top of the pole to undertake the repair work. What should be the length of ladder that she should use which, when inclined at an angle of 60° from the horizontal,  would she enable her to reach the required position ? Further how far from the foot of the pole should she place the foot of the ladder?  What value is indicated from this question?

Asked by pdcavita 19th November 2017 2:47 PM
Answered by Expert

## A spherical balloon of radius r subtends an angle Φ at the eye of an observer.  If the angle of elevation of its centre is Φ , then find the height of the centre of the balloon .

Asked by pdcavita 19th November 2017 2:53 PM
Answered by Expert

## A bird is sitting on the top of a tree which is 80 m high.  The angle of elevation of the bird from a point on the ground is 45°. The bird flies away from the point of observation horizontally and remains a constant height.  After 2 s,  the angle of elevation of the bird from the point of observation becomes 30°. Find the speed of flying of the bird.

Asked by pdcavita 19th November 2017 2:58 PM
Answered by Expert

## QID : 65 - In a triangle the length of the side opposite the right angle is 9√3 cm, what is the length of the side opposite to the angle which measures 30 degree?

Asked by aryap7964 6th December 2017 3:57 PM
Answered by Expert

## Please solve question no. 60

Asked by vikasg13.hardware 29th December 2017 11:28 AM
Answered by Expert

## if a=secA-tanA , b=cosecA+cotA then a= interms of b

Asked by bugadasuvarna 4th January 2018 9:16 PM
Answered by Expert

## if cot theta= 1/ root 3, show that 1-cos square theta/ 2- sin square theta = 3/5.

Asked by sanyam 5th January 2018 1:17 PM
Answered by Expert

## Answer the following

Asked by tultuldutta58 8th January 2018 3:20 AM
Answered by Expert

## Plz solve ques 51 urgently

Asked by lovemaan5500 14th January 2018 2:18 PM
Answered by Expert

## angle of elevation of bottom of window 10 metre above ground level is 30. a pole projecting outwards from the bottom of the window makes an angle of 30 with the wall if angle of elevtion of the pole from the same point is 60 find the height of the polewith figure pls

Asked by risheelchheda19 15th January 2018 4:26 PM
Answered by Expert

## ABC is a right triangle at right angled at A and AD is a median. BA  is produced to E such that AB = AE and join ED. AB = 6 , BC = 10 cm , find the artea of triangle BED?

Asked by nisha_vini29 17th January 2018 12:44 AM
Answered by Expert

## oemetricaly derive the value of sin 30

Asked by amolshukal.2001 31st January 2018 8:47 AM
Answered by Expert

## Geometrical derive the value of sin zero

Asked by amolshukal.2001 31st January 2018 8:53 AM
Answered by Expert

## If secx+tanx=4 ,find the value of sinx ,cosx, secx and tanx?

Asked by hemanttkumarr 31st January 2018 9:30 AM
Answered by Expert

## geometricaly derive the value of  sin 45

Asked by amolshukal.2001 1st February 2018 9:28 PM
Answered by Expert

## Sin square 5 plus sin square 10 plus....plus sin square 85 plus cos square 45

Asked by Interfacesystems2 1st February 2018 9:33 PM
Answered by Expert

## Plz answer 1 part

Asked by lovemaan5500 4th February 2018 5:37 PM
Answered by Expert

## Plz.answer 2nd part

Asked by lovemaan5500 4th February 2018 5:38 PM
Answered by Expert

## Cos2A+tan2A-1/sin2A=tan2A

Asked by vaibhav 5th February 2018 11:04 AM
Answered by Expert

## cotØ+tanø=7 find cot2ø+tan2ø???

Asked by tluser1 6th February 2018 1:26 PM
Answered by Expert

## 5 sin^2s+4 cos^2s=2/9, find tan s

Asked by Swapan 14th February 2018 2:26 PM
Answered by Expert

## state true or false  please explain the answer

Asked by gpnkumar0 15th February 2018 10:00 PM
Answered by Expert

## state true  or false please explain the answer

Asked by gpnkumar0 15th February 2018 10:01 PM
Answer Verified by Expert

## state true or false  please explain the answer

Asked by gpnkumar0 15th February 2018 10:02 PM
Answered by Expert

## If cosec theta . cos( theta + 54) = 1, find the value of theta so that theta and (theta + 54) are acute angles.

Asked by bdroy_2014 16th February 2018 7:54 PM
Answered by Expert

## the angle of elevation of the top of a hill at the foot of a tower is 60 degree and the angle of elevation of the top of the tower from the foot of the hill is 30 degree. if the tower is 50 m high, what is the height of the hill?

Asked by corpordann 19th February 2018 5:27 PM
Answered by Expert

## In triangle ABC, AD is perpendicular to BC. Sin B = 0.8 , BD = 9 cm and tan C = 1. Find the length of AB , AD , AC and DC .

Asked by sactalkmail 19th February 2018 6:45 PM
Answered by Expert

## In the right angled triangle ABC,angle C=90 degrees and angle B=60 degrees.If AC=6cm,find the lengths of the sides BC and AB  (Hint:Use the concept of trigonometry)

Asked by laxmi.agarwal055 21st February 2018 7:17 PM
Answered by Expert

## If the lengths of each side of a rhombus is 8cm and its one angle is 60 degrees,then fing the length of diagonals of rhombus  (Hint:Use the concept of trigonometry)

Asked by laxmi.agarwal055 21st February 2018 7:18 PM
Answered by Expert

## cos58/sin32+sin22/cos68-cos38cosec52/tan18 tan35 tan60 tan72 tan55

Asked by delphinjayaprakash 21st February 2018 8:09 PM
Answered by Expert

## (sin A - cos A +1)/ ( sin A + cosA -1)= 1/( sec A - tanA)

Asked by bdroy_2014 24th February 2018 12:48 PM
Answered by Expert

## PROVE THAT: cot A + cosec A - 1/cot A - cosec A +1 = 1 + cos A/sinA

Asked by nethra 24th February 2018 9:44 PM
Answered by Expert

## In a right angle traingle right angled at A if tanC= then find sinBcosC+cosBsinC

Asked by arvindsahadevadharwad 26th February 2018 2:16 PM
Answered by Expert

## Please solve this .

Asked by agarwalaayush 26th February 2018 6:37 PM
Answered by Expert

## Sir/mam Please solve Question 21

Asked by Vivek.d8765 27th February 2018 4:37 PM
Answered by Expert

### CBSE X Maths

Asked by sibaramamohanty 2nd March 2018 8:12 AM
Answered by Expert

## Prove that  : sin^4A+cos^A/1-2sin^2 A*cos^2 A=1

Asked by ihsanansar123 2nd March 2018 12:52 PM
Answer Verified by Expert

## If cosØ = √(4 – x2)/2 find the values of  1)  secø.tanø 2) cosecø.cotø

Asked by gpnkumar0 4th March 2018 8:40 PM
Answered by Expert

## Prove.

Asked by Adrija 10th March 2018 10:55 AM
Answered by Expert

## Q5. A tunnel makes an angle of measure 30 with the ground. If we go 100 m in the tunnel, the vertical distance from the ground is covered x m, then .......... .  x > 100 m  x = 100 m  x = 50 m  x = 30 m

Asked by shailesh.solanki 18th March 2018 1:43 PM
Answered by Expert

## pls explain

Asked by gpnkumar0 25th March 2018 10:00 PM
Answered by Expert

## pls explain

Asked by gpnkumar0 25th March 2018 10:01 PM
Answered by Expert

## pls explain

Asked by gpnkumar0 25th March 2018 10:02 PM
Answered by Expert

## Prove that cosAcotA/(1-sinA)=1+cosecA

Asked by Sunita 31st March 2018 8:18 AM
Answered by Expert

## If secA+tanA=p Prove sinA=p^2-1/(p^2+1)

Asked by Sunita 6th April 2018 7:46 PM
Answered by Expert

## Prove (SecA-cosecA)(1+tanA+cotA)=tanAsecA-cotAcosecA

Asked by Sunita 6th April 2018 7:50 PM
Answered by Expert

## the upper part of a tree broken by wind,falls to the ground without being detached.the top of the broken part touches the ground at the angle of 38degree30min ata point6m from the foot of the tree calculate 1. the height at which the tree is broken.

Asked by ipranjal01 17th April 2018 12:47 PM
Answered by Expert

## Lim x->0 (tan x- sin x)/x^3=? Can you explain this question  in shortcut way?

Asked by Ravikumar 20th April 2018 9:30 PM
Answered by Expert

## A+B = pi/2 and B+C =A. Find tanA

Asked by acv27joy 23rd April 2018 6:13 AM
Answered by Expert

## If l sin ϴ + m cos ϴ + n = 0 and l’ sin ϴ + m’ cos ϴ + n’ = 0 Then prove that (mn’-m’n)² + (nl’ – ln’)² = (lm’-l’m)²

Asked by CHIDAMBAR 23rd May 2018 7:00 PM
Answered by Expert

## Tan^2A+tan^2B=(sin^2A-sin^2B)/cos^2A-cos^2B   Prove

Asked by Sunita 3rd June 2018 2:09 PM
Answered by Expert

## Prove that : Sec^6x-tan^6x= 1+3tan^2x+ 3tan^4x

Asked by siddharthlathia0 10th June 2018 6:55 AM
Answered by Expert

## If cos A =4/5 find Sin A , Tan A , Cot A

Asked by dhruvyup 13th June 2018 6:40 PM
Answered by Expert

## Prove that : cot θ cot 2θ + cot 2θ cot 3θ + 2=cot θ (cot θ-cot 3θ )

Asked by tps.mjmdr 16th June 2018 8:08 PM
Answered by Expert

## Q 9( i )

Asked by pukai7229 26th June 2018 9:38 PM
Answered by Expert

## [Q.]  12 ( i )

Asked by pukai7229 26th June 2018 9:39 PM
Answered by Expert

## HOW TO DO THIS SUM ON EQATION AND SOLUTION

Asked by pukai7229 26th June 2018 9:40 PM
Answered by Expert

## How to solve sum iv) ??

Asked by Shreyas 29th June 2018 8:54 PM
Answered by Expert

## Please solve this question

Asked by vikasg13.hardware 30th June 2018 6:55 AM
Answered by Expert

## Solve it.

Asked by sakshisingh3124 30th June 2018 9:35 PM
Answered by Expert

## Solve it.

Asked by sakshisingh3124 30th June 2018 9:36 PM
Answered by Expert

## Q 14 pls

Asked by Tanishq 1st July 2018 2:47 PM
Answered by Expert

## PROVE THAT SinØ—CosØ+1 / SinØ+CosØ—1 = 1/ secØ—TanØ

Asked by siddharthjaiswal1122 1st July 2018 2:52 PM
Answered by Expert

## Prove that: tan A + se A - 1/ tan A - sec A + 1= 1 + sin A/ cos A

Asked by hariom2083 5th July 2018 12:18 AM
Answered by Expert

## in a right angled triangle the hypotenuse is 2root2 times the perpendicular drawn from  the opposite vertex then then other acute angles of triangle are

Asked by gargpuneet989 10th July 2018 6:28 PM
Answered by Expert

## Prove that

Asked by Anish 11th July 2018 1:35 PM
Answered by Expert

## Q.3

Asked by 1784393325200864 12th July 2018 3:53 PM
Answered by Expert

## Q4

Asked by 1784393325200864 12th July 2018 4:01 PM
Answered by Expert

## (cos x - cos y)^2 + (sin x - sin y)^2 = 4sin^2 (x-y)/2

Asked by rtortechger.official 12th July 2018 7:36 PM
Answered by Expert

## Prove that:

Asked by 1784393325200864 16th July 2018 6:23 AM
Answered by Expert

## Please solve - A balloon moving in a straight line passes vertically above two points “A" and "B" on a horizontal plan 1000 mt apart. When above “A” it has an altitude of 600 as seen from “B” and when above “B” it has an altitude of 450 as seen from “A”. Find the distance from “A” of the point at which it will touch the place when it comes down vertically.

Asked by gkbsrr 16th July 2018 1:59 PM
Answered by Expert

## pls fast

Asked by pnthisdp33 25th July 2018 7:21 PM
Answered by Expert

## ABC is a Triangular Park with ab is equal to AC is equal 200 m a clock tower situated at the midpoint of BC.The angles of elevation of the top of the tower at A and B are cot inverse 3.2 and cosec inverse 2.6 respectively. The height of the tower is

Asked by mokshithreddy125 30th July 2018 7:33 PM
Answered by Expert

## For an angle theta ,state the value of sin^2theta + cos^2theta

Asked by prarenupall8070 30th July 2018 7:55 PM
Answered by Expert

## Chapter 21 trigonmetrical identities

Asked by Ahman 3rd August 2018 11:41 AM
Answered by Expert

## 17th?

Asked by smanishkumar2002 4th August 2018 8:34 PM
Answered by Expert

## If tan x=k , then find the value of

Asked by SanskarAgarwal86 6th August 2018 10:25 PM
Answered by Expert

## cosec square theta ×1+cos theta×1-cos theta equal to x find the value of x

Asked by dronsharma798 13th August 2018 10:15 PM
Answered by Expert

## find dy/dx when x = a(cos thita + thita sin thita) y = a(sin thita – thita cos thita) explain in great detail

Asked by haroonrashidgkp 15th August 2018 8:34 PM
Answered by Expert

## If I tan a +m sec a=n and q tan a +r seca =j  then prove that:(nq-qn/mq-rl)^2=1+(jm-rn/mq-lr)^2

Asked by kmondaldgms 16th August 2018 11:20 AM
Answered by Expert

## No. 1:if each of a,b andc is a positive acute angle such that sin(a+b-c)=1/2;cos (b+c-a)=1/2 and tan(c+a-b)=1;then find the values of a, band c. No.2:if a sec theta +b tan theta +c=0 and p sec theta +qtan theta +r =0 then prove that (br-qc)^2 -(pc-ar)^2=(aq-bp)^2 No. 3:sin^4 theta/a +cos^4 theta/b=1/a+b then prove that sin^8 theta/a^3 +cos^8 theta/b^3+1/(a+b)^3 NO.4: If sin x +sin^2 x=1 then find the value of cos^8 x +2cos^6 x+cos^4 x (INDEX;^2 : means to the power of)

Asked by kmondaldgms 16th August 2018 11:37 AM
Answered by Expert

## 1 Simplify: (tan x +sec x-1)/ (tan x -secx +1) 2 PROVE THAT: cos6x=32cos^6 x-48cos^4 x +18cos^2 x -1 3 (pi=180 degrees) if tan x=3/4 ,pi

Asked by keshavendu35 16th August 2018 11:58 AM
Answered by Expert

## plz. match the following showing the steps  that is by showing steps plz. answer fast tomorrow is maths exam

Asked by keshavendu35 16th August 2018 12:21 PM
Answered by Expert

## If a and b are acute angles such that tan a =1/2,tan b=1/3 and tan(a+b)=tan a +tan b/1-tana*tanb then find tan(a+b)

Asked by kmondaldgms 17th August 2018 12:03 AM
Answered by Expert

## if a sec theta +b tan theta +c=0 and p sec theta +qtan theta +r =0 then prove that (br-qc)^2 -(pc-ar)^2=(aq-bp)^2

Asked by kmondaldgms 17th August 2018 12:04 AM
Answered by Expert

## If sin x +sin^2 x=1 then find the value of cos^8 x +2cos^6 x+cos^4 x (INDEX;^2 : means to the power of)

Asked by keshavendu35 17th August 2018 12:08 AM
Answered by Expert

## PROVE THAT: cos6x=32cos^6 x-48cos^4 x +18cos^2 x -1

Asked by keshavendu35 17th August 2018 12:09 AM
Answered by Expert

## if cosec^2 theta = 4xy/(x+y)^2; then find the relation between x and y

Asked by kmondaldgms 19th August 2018 12:26 AM
Answered by Expert

## Is cos(|sin x|÷x) not defined at x=0?

Asked by jaychandran1967 21st August 2018 6:20 PM
Answered by Expert

## tanA+tanB+tanC=6 cotA+cotB+cotC=?

Asked by dineshchem108 23rd August 2018 10:01 PM
Answered by Expert

## Please tell me

Asked by siddharthjaiswal1122 25th August 2018 6:32 PM
Answered by Expert

## If y = ex sin x , prove that d2y/dx2 – 2 dy/dx  + 2y = 0 Explain in great detail

Asked by haroonrashidgkp 25th August 2018 7:07 PM
Answered by Expert

## If y = sin x and x changes from pie/2  to 22/14, what is the approximate change in y ? Explain in great detail

Asked by haroonrashidgkp 22nd September 2018 3:58 PM
Answered by Expert

## If A and B are complementary angles,prove that:              (1)cotB + cosB =secA cosB (1 + sinB) (2)cotAcotB - sinAcosB - cosAsinB =0

Asked by gautamkr517 23rd September 2018 9:03 PM
Answered by Expert

## Will I get marks if I shifted the terms cosec^2 theta and cot^2theta in the below mentioned question?👇

Asked by guptaabhinav0809 25th September 2018 8:41 PM
Answered by Expert

## ca you say the answer for my holiday assignment .i can't find the answer can someone help me  trignomentry-uses ratios ,special anglesand identities

Asked by SriVaishnavi 26th September 2018 9:38 PM
Answered by Expert

### CBSE X Maths

Asked by shakshi.pole 29th September 2018 12:20 PM
Answered by Expert

## can you say the answer for my holiday assignment .i can't find the answer can someone help me  trignomentry-uses ratios ,special angles and identities

Asked by SriVaishnavi 2nd October 2018 9:30 AM
Answered by Expert

## cosA - sinA+1/ cosA+sinA-1 = cosecA+ cotA Solve the above.

Asked by roysubarna2016 2nd October 2018 11:27 AM
Answered by Expert

## (sin70 + cos20)(sec70 + cosec20) (tan70 – cot20)

Asked by amruta.p.1978 3rd October 2018 11:10 PM
Answered by Expert

## Please prove this question.

Asked by Mohammed 12th October 2018 10:30 AM
Answered by Expert

## a man on the bank of a stream observes a tree on the opposite bank exactly across the stream he finds the angle of elevation of the top of the tree to be 45. on receding perpendicularly a distance of 4m from the bank, he finds that the angle of elevation reduces by 15 .is this information sufficient for the man to determine the height of the tree and the width of the stream? if so, find them.    heights and distance

Asked by triptisrivastava2002 14th October 2018 3:26 PM
Answered by Expert

## prove that if secA +tanA =a ,then prove that a^2-1/a^2+1=sinA

Asked by Gopalsagar6176 15th October 2018 12:49 PM
Answered by Expert

## what are the easiest ways to solve trigo questions

Asked by hembiyani 18th October 2018 11:57 AM
Answered by Expert

## please help

Asked by krishdabhoya2003 21st October 2018 3:42 PM
Answered by Expert

## Page 377 Ex 6 If ∠A and ∠B are acute angles such that cosA=cosB, then show that ∠A = ∠ B.

Asked by miniprasad 23rd October 2018 9:53 PM
Answered by Expert

## Page 406 Qst : 30   Cos θ              +    cos θ     = 2 Cosec +1 cosec - 1

Asked by miniprasad 23rd October 2018 9:57 PM
Answered by Expert

## Page 410 Qstn 31 Cos4 θ – sin4θ =

Asked by miniprasad 23rd October 2018 9:58 PM
Answered by Expert

## Prove that  (tanA+secA) - (secA+tanA)(secA-tanA) = (tanA+secA)(1-secA+tanA)

Asked by sunilvakkat 25th October 2018 2:47 PM
Answered by Expert

## Solve for x  3tanx + cotx = 5cosecx

Asked by dssinghania1234 27th October 2018 10:20 AM
Answered by Expert

## Tan18.tan23.cosec square 45.tan67.tan72 evaluate

Asked by Savipramod 29th October 2018 12:46 AM
Answered by Expert

## SecA-1/secA+1=1-cosA/1+cosA Prove

Asked by Kshipra.nks 1st November 2018 6:16 AM
Answered by Expert

## sin45/coesc60+sec60

Asked by Nisarg 2nd November 2018 5:20 PM
Answered by Expert

## (sinA+secA)sq. +(cosA+cosecA)sq. =(1+secAcosecA)sq.

Asked by jaiswalsindhuli717 7th November 2018 10:23 AM
Answered by Expert

## prove:(sinø+secø)2+(cosø+cosecø)2=(1+secø.cosecø)

Asked by praveen.ujjwal 12th November 2018 9:15 PM
Answered by Expert

### CBSE X Maths Introduction to Trigonometry

Asked by Gounshi 14th November 2018 4:02 PM
Answered by Expert

## Evaluate the term cosec .

Asked by chorghadeshekhar 18th November 2018 8:28 PM
Answered by Expert

## Find all trigonometric ratio for the angle 30 geometrically.

Asked by guptaabhinav0809 19th November 2018 10:33 PM
Answered by Expert

## If p and q are two non zero unequal real numbers show that sin theta can never be equal to p2+q2/2pq

Asked by rushabh1234 20th November 2018 11:22 AM
Answered by Expert

## If a and b are two non zero unequal real numbers show that sec theta=             2rootab/a+b  is impossible

Asked by rushabh1234 20th November 2018 11:24 AM
Answered by Expert

## Prove that c ot^2A -cos ^2A =cos ^2A ×cot ^2A

Asked by dantkalesamarth 22nd November 2018 10:02 PM
Answered by Expert

## If Tan theta is root2 -1, then prove that sin theta.cos theta = 1/2 root 2

Asked by prashanth.rajappa 16th December 2018 11:16 PM
Answered by Expert

## Q27. If sec ϴ + tan ϴ = x, show that sin ϴ =   I haven't understand the solution of this question.Will u please explain me

Asked by shivkant.928 21st December 2018 11:19 PM
Answered by Expert

## Sin35°sin55°-cos35°cos55°

Asked by devika.selokar1987 1st January 2019 10:56 PM
Answered by Expert

## If sin A-cosA=   then  find the value of the following. a) sinA.cosA     b) sinA + cosA

Asked by sunilkumar08031999 3rd January 2019 9:39 PM
Answered by Expert

## tan1*tan2*tan3*.........tan89*=1

Asked by singhtaran652 7th January 2019 6:31 PM
Answered by Expert

## How to solve??

Asked by tirthajay6 11th January 2019 2:16 PM
Answered by Expert

## tan 30

Asked by ishaansansare28 13th January 2019 3:54 PM
Answered by Expert

## tan1 tan2 tan3 ............tan89=1 what is the probability that a leap year selected at random will have 53 sundays

Asked by sanjaysahu675 16th January 2019 10:41 PM
Answered by Expert

## tan1 tan2 tan3 ............tan89=1 what is the probability that a leap year selected at random will have 53 sundays if the polynomial x^4-6x^3+16x^2-26x+10 is divided by another polynomial x^2-2x+k gives reminder x+a . then find a and k.

Asked by sanjaysahu675 16th January 2019 10:49 PM
Answered by Expert

## prove tan +tan(90-theta)=secthetasec(90-theta

Asked by tsanjay7585 21st January 2019 9:30 PM
Answered by Expert

## sinA/cosA=?

Asked by pinkyv507 23rd January 2019 10:37 PM
Answered by Expert

## explain this question step wise

Asked by ABHILASHA 2nd February 2019 9:04 AM
Answer Verified by Expert

## answer of this question wid step wise explanation.

Asked by ABHILASHA 2nd February 2019 9:08 AM
Answered by Expert

## pt

Asked by mskjoshi 2nd February 2019 3:18 PM
Answered by Expert

## sec2a + cosec2a=sec2COSEC2A

Asked by raghuvatsa2710 2nd February 2019 9:21 PM
Answered by Expert

## If sinA = CosA , then find the value of 2tanA + cos2A

Asked by Kumarashish6345 5th February 2019 8:13 AM
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## tan theta plus sec theta minus one /tan theta minus sec theta pluc one =1 + cos theta / cos theta

Asked by jha.physio.naresh365 8th February 2019 8:47 PM
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## Please explain attached question.

Asked by JSN_FRANCIS 9th February 2019 6:07 AM
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## How to evaluate without tables?

Asked by malaysaha.80 9th February 2019 11:38 AM
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## If tan A=4/8.Find cosA+sinA

Asked by patelkrish486 9th February 2019 10:09 PM
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## If sinA+sin^2+sin^3=1 prove that     cos^6A-4cos^4A+8cos^2A=4 Please answer in a simpler way than the book

Asked by guptaabhinav0809 10th February 2019 11:47 PM
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## tansquareA-tansquraB= sinsqureA-sinsquareB/cossquareA-cossquareB

Asked by m_shailander 17th February 2019 3:14 PM
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## The angle of elevation of stationary cloud from a point 25 cm above the lake is 30°and the angle of depression of its reflection in the lake 60° what is the height of the cloud above that lake level.

Asked by asumangalashetty 18th February 2019 7:49 AM
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## Sin a + cos a + 1/ sin a + cos a - 1 = 1/ sin a - tan a

Asked by adityaagrawal020503 21st February 2019 11:30 PM
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## If 3 sin A + 5 cos A = 5, prove that (5 sin A - 3 cos A) = +-3

Asked by Kumarashish6345 22nd February 2019 8:57 AM
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## if sin =x and sec theta =y then find the value of cot theta

Asked by chintalarakeshyadav 23rd February 2019 1:21 PM
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## In the given figure, angle B=90 degree, AB = 4 units and BC = 3 units find sin A

Asked by mdmujtabaqureshi1 23rd February 2019 2:07 PM
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## Given 15 cot A = 8, find sin A and sec A

Asked by razzi1 28th February 2019 12:35 AM
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## answer this que

Asked by ABHILASHA 28th February 2019 3:00 PM
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## If sec A + tan A = p , then find cosec A.

Asked by Abel 3rd March 2019 2:48 PM
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## What is the value of (cos267° - sin23°)?

Asked by mail2sanjayprasad 5th March 2019 7:03 PM
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## Evaluate (cos²67°-sin²3°)

Asked by shivanshuranjeet 5th March 2019 8:58 PM
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## plzz solve this....as soon as possible..mam/sir

Asked by ABHILASHA 5th March 2019 11:16 PM
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## solution for this

Asked by ABHILASHA 5th March 2019 11:18 PM
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## solution required as early as possible...

Asked by ABHILASHA 5th March 2019 11:20 PM
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## Evaluate sin 30 +cos 270/tan 90

Asked by sheshmani 6th March 2019 8:48 PM
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## if tan(a+b)=1 and tan(a-b)=1/root 3 find the values of a and b

Asked by poshi.mails 7th March 2019 7:42 PM
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## In triangle abc angle b=90 bc+ab=17cm bc-ab=7cm find sin a cos c

Asked by Shaikmustafa 13th March 2019 4:15 PM
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## cos (3A-40°)=sin80°. Then value of A

Asked by sumandevi54757 24th March 2019 4:00 PM
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## How can I solve trigonometry

Asked by junaidquerashi831 1st April 2019 1:49 PM
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## In fig 8.13,find tan P-cotR.

Asked by Rprishavpal1234 3rd April 2019 2:33 PM
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## tan A + sec A -1 / tan A - sec A +1 = 1+ sinA / cos A

Asked by heermurjani 5th April 2019 4:32 PM
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## Tan²A—Tan²B=(sin²A—sin²B)  ÷cos²A×cos²B

Asked by Mmanjima7 25th April 2019 12:11 PM
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## If sin A =1/2, then find the other trigonometric ratios

Asked by Mudabbir690 30th April 2019 11:51 PM
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## What is trigonometry

Asked by Singhnitish1475 11th May 2019 1:46 AM
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## The angle of elevation of the top of a vertical tower from a point A, due east of it is 45°. The angle of elevation of the top of the same tower from a point B, due south of A is 30°. If the distance between A and B is 54√2 m , then the height of the tower (in metres), is :   a) 36/√3          b) 54 c) 54/√3          d) 108

Asked by Ranjeetgupta26068 16th May 2019 12:11 AM
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## If cosA = ncosB and sinA = msinB then show that (m^2-n^2)sin^2B =1-n^2

Asked by venkat.gunuganti 19th May 2019 11:55 AM
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## Cot 4x (sin5x + sin3x)= cot x (sin5x - sin3x)

Asked by Iamanish2003 20th May 2019 2:12 PM
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## If f(x)=2(7cosx+24sinx)(7sinx-24cosx), then find the maximum value of (f(x))^1/4

Asked by aahnik.mohanty 22nd May 2019 9:59 PM
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## Pls solve.

Asked by pb_ckt 23rd May 2019 3:46 PM
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## Table of sin, cos, tan theta?

Asked by harinderamit1234 25th May 2019 9:16 PM
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## Find the value of sin 31π/3

Asked by Shikhasaxena523 27th May 2019 3:39 PM
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## If 2sin (A+B)-1=0 and 2sin (A-B)-3=0 Find A and B

Asked by abhiraj.abhinav39 31st May 2019 5:23 PM
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### CBSE X Maths Some Applications of Trigonometry

Asked by regeliscus987 1st June 2019 1:59 PM
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## Pls solve.

Asked by pb_ckt 12th June 2019 2:48 PM
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## pls solve

Asked by pb_ckt 14th June 2019 11:19 PM
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## pls solve

Asked by pb_ckt 14th June 2019 11:20 PM
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## If y^x = e^(y-x) then prove dy/dx = (1+logy)^2/logy

Asked by ranaakshat345 17th June 2019 1:28 PM
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## Tan2 30°+tan2 45°+tan2 60°

Asked by Likithavenk 18th June 2019 9:36 PM
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## sinx + sin3x/cosx -con3x  = cotx

Asked by sanjeevnayan3 23rd June 2019 12:55 PM
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## sinx=1/2  then find the value of cosx

Asked by md.ameenkhan9292 29th June 2019 6:07 PM
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## 2 tan B + cot B = tan A , show that 2 tan(A-B) = cot B

Asked by agarwalharsh8476 6th August 2019 8:32 PM
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## Sin(A-B)=sinAcosB-cosAsinB

Asked by Arunthakur 12th August 2019 5:45 AM
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## Tan square A/tan square A-1+Cosec square A/sec square A-Cosec square A=1/1-2 cos square A

Asked by bindu_jayk 15th August 2019 11:45 AM
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## Trigonmetric

Asked by Ratanswain752 16th August 2019 9:14 PM
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## Sec 41 Sin 49 Cosec 41-Tan 20 Tan 60 Tan 70-

Asked by adalroshan2464 20th August 2019 4:31 PM
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## A 1.6m tall girl stands at a distance of 3.2m from a lampost and casts a shadow of 4.8m on the ground. Find the height of the lampost by using(1)trigonometric ratios(2)property of similar triangles.

Asked by dr.geetanjali.p 2nd September 2019 11:29 AM
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## plzz explain how to solve it with the solution

Asked by ABHILASHA 7th September 2019 3:14 PM
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## Cos a=12/3 then find sin a tan a sec a

Asked by bollamramesh98 26th September 2019 8:52 PM
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## Prove that : 1-sinA/1+sinA=(secA-tanA)2

Asked by giridipak451 4th October 2019 10:01 PM
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## What is the value of sec 333º × (sec^2 333º - 1)^½?

Asked by rishabhsankla1 13th November 2019 12:29 AM
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## If f(θ) = sin2 θ + sin2 (θ+2π/3) + sin2 (θ+4π/3), then what will be f(π/10)?

Asked by rishabhsankla1 26th November 2019 8:20 PM
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## CosA=0.5 /cosB=1/√2 find value of TanA-TanB /1+TanATanB

Asked by ashwinipandey7355 3rd December 2019 11:01 PM
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## f x = a cos theta -b sin theta and y = a sin theta + b cos theta then prove that a square+b square = x square+y square

Asked by melmerisb 7th December 2019 12:38 AM
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## 2cos²Ø+sinØ-2=0 find value of Ø

Asked by gogobarcasajal 7th December 2019 11:00 AM
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## If A and B are acute in right angled ABC, then sin2 A + sin2 B =

Asked by preetisonips22 4th January 2020 5:44 PM
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## Prove that tan13A - TAN 9A- TAN4A= TAN 13A•TAN9A•TAN4A

Asked by amankumarj7371 9th January 2020 9:04 PM
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## Given sec Ø =13/12 calculate all other trigonometric ratios...

Asked by chpratik11 10th January 2020 3:53 PM
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## if sinA +cosA =√3, then prove that tanA +cotA =1

Asked by singh.dh 12th January 2020 10:42 PM
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## Evaluate cos48°cos42°–sin48°sin42°

Asked by Maharanam446 22nd January 2020 1:21 PM
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## Evaluate sin 30°+ tan45°-cosec60°/sec30°+cos60°+cot45°

Asked by ashleshathakur124 10th February 2020 9:39 PM
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## (cos a /1+sin a)+(cos a /1-sin a)=4

Asked by dwivedipooja1983 10th February 2020 10:05 PM
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## Tan a=4/3; cos (a+b)= - √5/5 ; find the value of tan (a - b) .

Asked by saikatsukai514 17th April 2020 7:41 AM
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## Let x, y, z be real numbers with  such that x+y+z=  and P = cosx.siny.cosz. then what are the minimum and maximum values of P? Also mention at what values of x,y,z they occur?

Asked by sarn1027 5th May 2020 2:44 PM
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## Proove that (CotA+CosecA-1)/(CotA-CosecA+1) = (1+CosA)/SinA

Asked by kssvsv2011 9th May 2020 8:44 PM
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## if sin a =3/5,find cos a and tan a

Asked by Battulasirichanda 16th May 2020 3:21 PM
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## tan30.sec45+tan60.sec30

Asked by shubhaarya25 17th May 2020 4:04 PM
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## tan60/sin60+cos30

Asked by shubhaarya25 18th May 2020 11:06 AM
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## 1+tanA/sinA + 1+cotA/cosA

Asked by edoc008 31st May 2020 8:00 PM
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## mathematics

Asked by coolbhavanakothari08 2nd June 2020 8:58 PM
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## If a and b are acute angles such that tan a=1/3 tan b = 1/2 and tan A+B = 45

Asked by ommkardas2004 9th June 2020 5:54 AM
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## cotA+cosecA-1/cotA-cosecA+1=1+cosA/sinA.prove it.

Asked by engtalukdardubey 9th June 2020 5:32 PM
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## Tan theta =11 then find other t- ratios

Asked by ommkardas2004 13th June 2020 10:06 AM
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## prove that sec A(1- sin A) (secA+ tan A) = 1

Asked by pandeydivyanshu42 19th June 2020 12:52 PM
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## if 3cos A = 4sinA, find 4cos²A-3sin²A+2

Asked by ambikaradhika582 22nd June 2020 3:56 PM
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## A vertical lamp-post of height 9 metres stands at the corner of a rectangular field. The angle of elevation of its top from the farthest corner is ,while from another corner it is . The area of the field isA vertical lamp-post of height 9 metres stands at the corner of a rectangular field. The angle of elevation of its top from the farthest corner is ,while from another corner it is . The area of the field is

Asked by bhartiankita2002 4th July 2020 12:22 PM
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## abcd is a quadilateral prove that cos a+b / 4 = sin c+d /4

Asked by harishankarpandabrl 9th July 2020 3:37 PM
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## prove that: 1+cosecA+cotA=2/1+tanA-secA

Asked by saumitachaudhuri120 17th July 2020 8:41 PM
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## Question 6th

Asked by shivanisethi255 18th July 2020 5:30 PM
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## trigonometry ka question hai please solve

Asked by jaiswalpiyush040 20th July 2020 8:22 AM
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## clear my doubt

Asked by kandukuriPraneeth16 25th July 2020 6:18 PM
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## Cos5π/4-sin5π/4+tan11π/4-cot11π/4? SIn4530°? Cos (-9π/4)? Sin 120°cos 150°-cos240°sin330°? If tan35°=k then,Tan145°-Tan125°/1+Tan145°.Tan125°?

Asked by Pallapothu.a 5th August 2020 4:13 PM
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## need answer for 12 question

Asked by vhymag 7th August 2020 7:12 AM
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## Q10

Asked by omved0304 7th August 2020 11:24 AM
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## Evaluate : (cos3x-2cos4x)/(sin3x+2sin4x)

Asked by shreyasrivastavaprayag 13th August 2020 11:06 PM
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## cos¯¹[cos(680°)]

Asked by harsharyan363 15th August 2020 3:07 PM
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## 1st question please solve it !

Asked by shahbaaz.rocking 17th August 2020 5:29 PM
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## question

Asked by arindeep.singh 20th August 2020 6:56 PM
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## if cos (40°-X)=30sin find the value of X

Asked by lavanyasureshkumar 24th August 2020 4:02 PM
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## Prove it

Asked by nishabr7 24th August 2020 10:49 PM
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## pls clear the doubt, dear sir/ madam

Asked by sachitshanchinal 2nd September 2020 2:53 PM
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## if sintita +costita =1/5 and 0≤thita

Asked by sravikakanneganti 19th September 2020 5:26 PM
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## Prove that 2sin^2 y + 4cos(x + y) sinxsiny ny + cos 2 * (x + y) = cos 2x

Asked by apnp31 21st September 2020 12:19 PM
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## Show that … cosec theta minus 2sin cube theta upon 2cos cube theta minus cos theta is equals to tan theta

Asked by pramoddomarp121 26th September 2020 6:01 PM
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## If f(x) = sinx +sin? (x + 7/3) + cos2.cos (x + (x+5) and g(5/4) = 1, then (gof)(x) =

Asked by adithyavardhansudagoni2004 27th September 2020 11:08 AM
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## If cos A + sec A = 2, find value of cos2 A + sec2 A.

Asked by natashagupta50.9spicertl 30th September 2020 3:41 PM
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## find  x if :- sin 47 sec 43 +cos43 cosec 47- cos square 45 ° =0

Asked by 4321sandeep 16th October 2020 12:40 PM
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## Sin A + cosec A = 2

Asked by anufancy1 16th October 2020 10:24 PM
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## 2 sin 67 1/2° cos22 1/2°= ?

Asked by sahookishorechandra967 17th October 2020 7:46 AM
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## please give me the answer of attached question

Asked by aryan2mumbai 22nd October 2020 8:22 AM
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## cot2 A - cos2 A = cot2 A × cos2 A

Asked by akbarreshma123 24th October 2020 8:35 PM
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## tan2-sin2=tan2.sin2

Asked by afaizaali293 25th October 2020 11:39 AM
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## Sin 300°- Cos 330°

Asked by k.jeyanraj 23rd November 2020 10:34 AM
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## question number 32

Asked by fk0391851 22nd December 2020 11:10 AM
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## if CosA+secA= 2, find the value of cosA2 and secA2

Asked by priyapal1106 11th February 2021 8:01 PM
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## (sin A+ cos A) (sec A+ cosec A) = 2+sec A.cosec A

Asked by kotharianaiya9 6th March 2021 12:15 PM
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## (tan 60 + 1 / tan 60 - 1 )^2 = 1 + cos 30 / 1 - cos 30

Asked by indirasolanki5661.9sdatl 8th March 2021 7:37 PM
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## find the number of solutions of the equation 6cosec²theta-5cosecthetha+1=0

Asked by rakeshpandey020280 17th March 2021 7:06 PM
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## SHOW THAT cos 38°cos 52°- sin 38°sin 52° =0

Asked by debasreepartha 23rd April 2021 8:38 AM
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## sin teta + 2cos teta =1 prove that 2sin teta - cos teta =2

Asked by manish.mayuka 2nd May 2021 2:02 PM
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## evaluate cos150

Asked by rutujaindulkar6 4th May 2021 10:19 AM
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## prove that

Asked by kirtigaur935 9th May 2021 12:29 PM
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## plese solve it in detail with step by step explanation

Asked by ashwinbalaaji30 18th May 2021 10:51 AM
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## In ∆abc , Lb= 90 and tanA = 1/√3 . Find sinA cosC + cosA since

Asked by Dhruv 5th July 2021 4:12 PM
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## tan tita+sec tita -1/tan tita-sec tita+1

Asked by gopuradhika1128 28th July 2021 8:45 PM
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## let f(theta)=[1+(4sintheta/sin6theta)] [1+(4sin2theta/sin5theta)]

Asked by digbijaybehera008 15th September 2021 9:15 AM
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## prove that 1+sina-cosa/1+sina+cosa=√1-cos/√1+cosa

Asked by ambarishpatil7 28th September 2021 8:49 PM
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## In triangle ABC, AD is perpendicular to BC, angles B and C are of measures 30 and 60 respectively, if AD=7m, then find the value og BC.

Asked by godboletanaya 24th December 2021 11:08 AM
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## tanA =cotB find A+B=?

Asked by ankitakulhar075 3rd April 2022 8:43 PM
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## evaluate sin 45°+ cos 45°?

Asked by prathibhakethavath2 3rd May 2022 6:53 PM
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## cos x=-1/2,x lies in which quadrant

Asked by antarshekhawat18 25th May 2022 10:32 AM
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## write all the other trigonometric ratios of angle a in terms of cosecant a

Asked by padmajabchannammanavar 8th June 2022 7:28 AM
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## Please help me to solve the question.

Asked by rashikulkarni28 8th June 2022 2:47 PM
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## Please help me to solve the question

Asked by rashikulkarni28 8th June 2022 2:51 PM
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## what is tan45+cot55

Asked by bhavanakookatla1986 27th June 2022 10:36 AM
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## If tantita- √5\2 then value of cos tita is

Asked by razaqasmi87 29th June 2022 9:36 PM
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## if cosec∅+cot∅=k then show that cos∅k²-1/k²+1

Asked by rc1827805 23rd December 2022 8:11 PM
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## maths

Asked by krishpatel20108 1st January 2023 7:56 PM
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## A ladder 15 m long just reach the top of a vertical wall. If the ladder makes an angle 60° with the wall , find the height of wall

Asked by rumanshukumar0 4th January 2023 10:44 PM
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## prove that cosec-cot A) ^2 = 1-Cos A/ 1+ cos A

Asked by riddhu542007 7th January 2023 9:31 PM
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## Please sir solve this

Asked by harshitgamer6386 14th January 2023 8:22 AM
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## Pls solve

Asked by sdmbotch1123 18th January 2023 11:01 PM
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## if altitude of sun is 60 degrees then height of vertical tower that will cast shadow of lenght 20m

Asked by mohantybasanti04 22nd January 2023 7:08 PM
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## Prove that (sin^2 theta - 1)(tan^2 theta + 1) + 1 = 0

Asked by paresh0311 10th March 2023 3:22 PM
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## in triangle ABC is a right triangle right angle B and sin c is equal to 12 by 25 find the value of sin A cos c minus cos A sin c

Asked by sandipmukherjee16536 14th September 2023 8:16 PM
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## if sin (x+30°)=1/2 find x

Asked by pednekarpreeti37 1st October 2023 5:01 PM
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## sin²30°.sec²60°+tan²45°.cosece²30°

Asked by pednekarpreeti37 3rd October 2023 8:55 PM
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## sin18/cos72

Asked by rishinath2607 6th October 2023 3:06 PM
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## trigonometry

Asked by anuragrr1222 29th November 2023 6:37 PM
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## value of 4/cos⁴A-sin⁴A+1

Asked by bhuvanajajimoggala0 16th December 2023 5:45 AM
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## if cos teta = 24/25 then write the value of sec teta

Asked by balu162 15th January 2024 8:53 PM
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## Q1. Ina DABC, LB=90^{\circ} If AB=2cm and AC=3cm Find Sin A.

Asked by tanujmaan58 18th January 2024 8:47 PM
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## in the given figure triangle ABC is right angled at b rays the foot of the perpendicular from b2 AC given that BC is equal to 3 cm and ab is equal to 4 cm find 10 angle DBC sin angle DBA

Asked by arushijaiswal406 21st January 2024 4:38 PM
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## 6. A is an acute angle in right triangle, right angled at B then value of (sinA + CosA) is ( a) Greater than (b) less than 1 (c) equal to 1 (d) depends on value of A

Asked by sathwicksathwick06 1st February 2024 7:30 PM
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