CBSE X Maths Some Applications of Trigonometry

angle

CBSE X Maths Introduction to Trigonometry

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

                                                              —————————

                                                               7sinΦ + 3cos,Φ  .

CBSE X Maths Introduction to Trigonometry

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

CBSE X Maths Introduction to Trigonometry

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

CBSE X Maths Introduction to Trigonometry

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

CBSE X Maths Introduction to Trigonometry

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

CBSE X Maths Introduction to Trigonometry

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

CBSE X Maths Some Applications of Trigonometry

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. 

CBSE X Maths Some Applications of Trigonometry

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. 

CBSE X Maths Some Applications of Trigonometry

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)

CBSE X Maths Some Applications of Trigonometry

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. 

CBSE X Maths Some Applications of Trigonometry

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? 

CBSE X Maths Some Applications of Trigonometry

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 .

CBSE X Maths Some Applications of Trigonometry

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. 

Gujarat - Gujarati Medium IX ALL Subject ત્રિકોણ

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?

CBSE IX Maths Triangles

Please solve question no. 60

JEE Plances JEE (Main) Maths

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

CBSE X Maths Introduction to Trigonometry

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

CBSE X Maths Introduction to Trigonometry

Answer the following

ICSE X Maths Trigonometrical Identities

Plz solve ques 51 urgently

JEE Plances JEE (Main) Maths

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  

ICSE IX Maths

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?              

CBSE X Maths Introduction to Trigonometry

oemetricaly derive the value of sin 30

CBSE X Maths Introduction to Trigonometry

Geometrical derive the value of sin zero

CBSE XI Science Maths Trigonometric Functions

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

CBSE X Maths Introduction to Trigonometry

geometricaly derive the value of  sin 45

CBSE X Maths Introduction to Trigonometry

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

ICSE X Maths Trigonometrical Identities

Plz answer 1 part

ICSE X Maths Trigonometrical Identities

Plz.answer 2nd part

ICSE X Maths

Cos2A+tan2A-1/sin2A=tan2A

CBSE X Maths

cotØ+tanø=7 find cot2ø+tan2ø???  

ICSE IX Maths

5 sin^2s+4 cos^2s=2/9, find tan s  

CBSE X Maths Introduction to Trigonometry

state true or false  please explain the answer  

CBSE X Maths Introduction to Trigonometry

state true or false  please explain the answer

ICSE X Maths Trigonometric Ratios of Complementary Angles

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

CBSE X Maths

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?

ICSE IX Maths Trigonometry

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 .  

ICSE IX Maths Trigonometry

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)

ICSE IX Maths Trigonometry

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)

CBSE X Maths Introduction to Trigonometry

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

ICSE X Maths

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

ICSE X Maths

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

CBSE X Maths Introduction to Trigonometry

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

CBSE X Maths Introduction to Trigonometry

Please solve this .

CBSE X Maths Introduction to Trigonometry

Sir/mam Please solve Question 21

CBSE X Maths

  $In ∆ABC,m\angle B=90°,AB=7cm and AC-BC=1cm.Determine the values of \sin B and \cos B.$

CBSE X Maths Introduction to Trigonometry

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

ICSE X Maths

Prove.

CBSE X Maths

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

CBSE X Maths Introduction to Trigonometry

pls explain

CBSE X Maths Introduction to Trigonometry

pls explain

CBSE X Maths Introduction to Trigonometry

pls explain

ICSE X Maths

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

ICSE X Maths

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

ICSE X Maths

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

ICSE X Maths

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.    

CBSE XII Science Maths

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

CBSE X Maths Introduction to Trigonometry

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

CBSE X Maths

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

ICSE X Maths

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

ICSE XI Science Maths

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

ICSE X Maths

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

CBSE XI Science Maths

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

JEE Plances JEE (Main) Maths

Q 9( i )

JEE Plances JEE (Main) Maths

[Q.]  12 ( i )

JEE Plances JEE (Main) Maths

HOW TO DO THIS SUM ON EQATION AND SOLUTION

ICSE X Maths

How to solve sum iv) ??

CBSE X Maths

Please solve this question 

JEE Plances JEE (Main) Maths

Solve it.

JEE Plances JEE (Main) Maths

Solve it.

JEE Plances JEE (Main) Maths

Q 14 pls

ICSE X Maths

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

CBSE XI Science Maths

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

CBSE XI Science Maths Trigonometric Functions

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   

JEE Plances JEE (Main) Maths

Prove that

CBSE X Maths

Q.3

CBSE X Maths

Q4

CBSE XI Science Maths

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

CBSE X Maths

Prove that:

ICSE X Maths

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.

CBSE IX Maths

pls fast

JEE Foundation X Maths

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

ICSE IX Maths

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

ICSE X Maths

Chapter 21 trigonmetrical identities

CBSE XI Science Maths Straight Lines

17th?

ICSE XI Science Maths

If tan x=k , then find the value of 

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CBSE X Maths

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

CBSE XII Science Maths

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

ICSE X Maths

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

ICSE X Maths

 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)

ICSE X Maths

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

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

ICSE X Maths

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)

ICSE X Maths

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

ICSE X Maths

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)

ICSE X Maths

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

ICSE X Maths

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

JEE Plances JEE (Main) Maths

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

CBSE XI Science Maths

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

ICSE X Maths

Please tell me

CBSE XII Science Maths

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

CBSE XII Science Maths

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

ICSE X Maths

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

CBSE X Maths

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

CBSE IX Maths

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

CBSE X Maths

CBSE IX Maths

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  

CBSE X Maths

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

CBSE X

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

ICSE IX Maths

Please prove this question.

ICSE X Maths Height and Distance

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

ICSE X Maths Trigonometrical Identities

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

CBSE XI Commerce Maths

what are the easiest ways to solve trigo questions   

CBSE X Maths

please help

CBSE X Maths Introduction to Trigonometry

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

CBSE X Maths Introduction to Trigonometry

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

CBSE X Maths Introduction to Trigonometry

Page 410 Qstn 31 Cos4 θ – sin4θ =

ICSE X Maths

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

CBSE XI Science Maths Trigonometric Functions

Solve for x  3tanx + cotx = 5cosecx  

ICSE IX Maths

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

CBSE X Maths

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

CBSE X

sin45/coesc60+sec60

ICSE X Maths

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

ICSE X Maths Trigonometrical Identities

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

CBSE X Maths Introduction to Trigonometry

CBSE X Maths

Evaluate the term cosec .

CBSE X Maths Introduction to Trigonometry

Find all trigonometric ratio for the angle 30 geometrically. 

CBSE XI Science Maths

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

CBSE XI Science Maths

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

ICSE X Maths

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

ICSE IX Maths

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

CBSE X Maths

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

ICSE X Maths

Sin35°sin55°-cos35°cos55°

ICSE X Maths

If sin A-cosA=   then  find the value of the following.

a) sinA.cosA     b) sinA + cosA

CBSE X Maths Introduction to Trigonometry

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

Gujarat X Maths

How to solve??  

ICSE X Maths Trigonometric Ratios of Complementary Angles

tan 30

CBSE X Maths

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

CBSE X Maths Introduction to Trigonometry

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.  

CBSE X Maths

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

CBSE X Maths Introduction to Trigonometry

sinA/cosA=?

CBSE X Maths Introduction to Trigonometry

answer of this question wid step wise explanation.

CBSE X Maths Introduction to Trigonometry

pt

ICSE X Maths Trigonometric Identities

sec2a + cosec2a=sec2COSEC2A

CBSE X Maths Introduction to Trigonometry

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

CBSE X Maths Introduction to Trigonometry

tan theta plus sec theta minus one /tan theta minus sec theta pluc one =1 + cos theta / cos theta

CBSE X Maths Introduction to Trigonometry

Please explain attached question.

CBSE X Maths Introduction to Trigonometry

How to evaluate without tables?

CBSE X Maths Introduction to Trigonometry

If tan A=4/8.Find cosA+sinA

CBSE X Maths Introduction to Trigonometry

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

ICSE X Maths Trigonometric Identities

tansquareA-tansquraB= sinsqureA-sinsquareB/cossquareA-cossquareB

CBSE X Maths Some Applications of Trigonometry

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.

CBSE X Maths Introduction to Trigonometry

Sin a + cos a + 1/ sin a + cos a - 1 = 1/ sin a - tan a 

CBSE X Maths Introduction to Trigonometry

If 3 sin A + 5 cos A = 5, prove that (5 sin A - 3 cos A) = +-3

CBSE X Maths

if sin =x and sec theta =y then find the value of cot theta

ICSE IX Maths

In the given figure, angle B=90 degree, AB = 4 units and BC = 3 units find sin A

CBSE X Maths

Given 15 cot A = 8, find sin A and sec A

CBSE X Maths

answer this que

CBSE X Maths

If sec A + tan A = p , then find cosec A.

CBSE X Maths Introduction to Trigonometry

 What is the value of (cos267° - sin23°)?

CBSE X Maths Introduction to Trigonometry

Evaluate (cos²67°-sin²3°)

CBSE X Maths Introduction to Trigonometry

plzz solve this....as soon as possible..mam/sir

CBSE X Maths Introduction to Trigonometry

solution for this

CBSE X Maths Introduction to Trigonometry

solution required as early as possible...

ICSE X Maths

Evaluate sin 30 +cos 270/tan 90  

CBSE X Maths

if tan(a+b)=1 and tan(a-b)=1/root 3 find the values of a and b

CBSE X Maths

In triangle abc angle b=90 bc+ab=17cm bc-ab=7cm find sin a cos c

CBSE X Maths

cos (3A-40°)=sin80°. Then value of A

ICSE X Maths Trigonometric Identities

How can I solve trigonometry    

CBSE X Maths

In fig 8.13,find tan P-cotR.

ICSE X Maths Trigonometric Ratios of Complementary Angles

tan A + sec A -1 / tan A - sec A +1 = 1+ sinA / cos A     

ICSE X Maths Trigonometric Identities

Tan²A—Tan²B=(sin²A—sin²B)  ÷cos²A×cos²B

CBSE X Maths Introduction to Trigonometry

If sin A =1/2, then find the other trigonometric ratios   

CBSE XI Science Maths Trigonometric Functions

What is trigonometry  

JEE Main Maths Trigonometry

  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  

ICSE VIII Maths

If cosA = ncosB and sinA = msinB then show that (m^2-n^2)sin^2B =1-n^2

CBSE XI Science Maths Trigonometric Functions

Cot 4x (sin5x + sin3x)= cot x (sin5x - sin3x)

CBSE XI Science Maths Trigonometric Functions

If f(x)=2(7cosx+24sinx)(7sinx-24cosx), then find the maximum value of (f(x))^1/4

CBSE XI Science Physics

Pls solve.

NEET NEET Physics

Table of sin, cos, tan theta?

CBSE X Maths Introduction to Trigonometry

Find the value of sin 31π/3

ICSE IX Maths Trigonometry

If 2sin (A+B)-1=0 and 2sin (A-B)-3=0

Find A and B

CBSE X Maths Some Applications of Trigonometry

CBSE XI Science Maths Trigonometric Functions

Pls solve.

CBSE XI Science Maths Trigonometric Functions

pls solve

CBSE XI Science Maths Trigonometric Functions

pls solve

CBSE XII Science Maths Inverse Trigonometric Functions

If y^x = e^(y-x) then prove dy/dx = (1+logy)^2/logy

ICSE IX Maths Trigonometry

Tan2 30°+tan2 45°+tan2 60°

CBSE XI Commerce Maths

sinx + sin3x/cosx -con3x  = cotx      

CBSE XI Science Maths Trigonometric Functions

sinx=1/2  then find the value of cosx

CBSE XI Science Maths Trigonometric Functions

2 tan B + cot B = tan A , show that 2 tan(A-B) = cot B

CBSE X Maths Introduction to Trigonometry

Sin(A-B)=sinAcosB-cosAsinB

CBSE X Maths Introduction to Trigonometry

Tan square A/tan square A-1+Cosec square A/sec square A-Cosec square A=1/1-2 cos square A

CBSE XI Science Maths Trigonometric Functions

Trigonmetric

CBSE X Maths Introduction to Trigonometry

Sec 41 Sin 49 Cosec 41-Tan 20 Tan 60 Tan 70-

CBSE X Maths Some Applications of Trigonometry

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.

CBSE XI Science Maths Trigonometric Functions

plzz explain how to solve it with the solution

CBSE X Maths Introduction to Trigonometry

Cos a=12/3 then find sin a tan a sec a

CBSE X Maths Introduction to Trigonometry

Prove that : 1-sinA/1+sinA=(secA-tanA)2

JEE Main Maths Trigonometry

What is the value of sec 333º × (sec^2 333º - 1)^½?

JEE Main Maths Trigonometry

If f(θ) = sin2 θ + sin2 (θ+2π/3) + sin2 (θ+4π/3), then what will be f(π/10)?

ICSE IX Maths Trigonometry

CosA=0.5 /cosB=1/√2 find value of TanA-TanB /1+TanATanB

CBSE X Maths Introduction to Trigonometry

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   

ICSE IX Maths Trigonometry

2cos²Ø+sinØ-2=0 find value of Ø

CBSE X Maths Introduction to Trigonometry

If A and B are acute in right angled ABC, then sin2 A + sin2 B =

CBSE X Maths Introduction to Trigonometry

Prove that tan13A - TAN 9A- TAN4A= TAN 13A•TAN9A•TAN4A

CBSE X Maths Introduction to Trigonometry

Given sec Ø =13/12 calculate all other trigonometric ratios...

CBSE X Maths Introduction to Trigonometry

if sinA +cosA =√3, then prove that tanA +cotA =1

CBSE X Maths Introduction to Trigonometry

Evaluate cos48°cos42°–sin48°sin42°

CBSE X Maths Introduction to Trigonometry

Evaluate sin 30°+ tan45°-cosec60°/sec30°+cos60°+cot45°

CBSE X Maths Introduction to Trigonometry

(cos a /1+sin a)+(cos a /1-sin a)=4

JEE Main Maths Trigonometry

Tan a=4/3; cos (a+b)= - √5/5 ; find the value of tan (a - b) .

JEE Main Maths Trigonometry

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? 

CBSE X Maths Introduction to Trigonometry

Proove that (CotA+CosecA-1)/(CotA-CosecA+1) = (1+CosA)/SinA

CBSE X Maths Introduction to Trigonometry

if sin a =3/5,find cos a and tan a

ICSE IX Maths Trigonometry

tan30.sec45+tan60.sec30

ICSE IX Maths Trigonometry

tan60/sin60+cos30

ICSE X Maths Trigonometrical Identities

1+tanA/sinA + 1+cotA/cosA

CBSE X Maths Introduction to Trigonometry

mathematics

CBSE X Maths Introduction to Trigonometry

If a and b are acute angles such that tan a=1/3 tan b = 1/2 and tan A+B = 45

ICSE X Maths Trigonometrical Identities

cotA+cosecA-1/cotA-cosecA+1=1+cosA/sinA.prove it.

CBSE X Maths Introduction to Trigonometry

Tan theta =11 then find other t- ratios

CBSE X Maths Introduction to Trigonometry

prove that sec A(1- sin A) (secA+ tan A) = 1

ICSE IX Maths Trigonometry

if 3cos A = 4sinA, find 4cos²A-3sin²A+2

CBSE XII Science Physics

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

CBSE X Maths Introduction to Trigonometry

abcd is a quadilateral prove that cos a+b / 4 = sin c+d /4

ICSE X Maths Trigonometric Identities

prove that: 1+cosecA+cotA=2/1+tanA-secA

ICSE X Maths Trigonometrical Identities

Question 6th

CBSE XI Science Maths Trigonometric Functions

trigonometry ka question hai please solve

CBSE XI Science Maths Trigonometric Functions

clear my doubt

CBSE XI Science Maths Trigonometric Functions

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°?

CBSE XII Science Maths

need answer for 12 question

CBSE XI Science Maths Trigonometric Functions

Q10

ICSE XI Science Maths

Evaluate : (cos3x-2cos4x)/(sin3x+2sin4x)

CBSE XII Science Maths

cos¯¹[cos(680°)]

ICSE X Maths Trigonometrical Identities

1st question please solve it !

CBSE X Maths Introduction to Trigonometry

question

CBSE X Maths Introduction to Trigonometry

if cos (40°-X)=30sin find the value of X

ICSE XI Science Maths

Prove it

CBSE XI Science Maths Trigonometric Functions

pls clear the doubt, dear sir/ madam

CBSE XI Science Maths Trigonometric Functions

if sintita +costita =1/5 and 0≤thita

CBSE XI Science Maths Trigonometric Functions

Prove that 2sin^2 y + 4cos(x + y) sinxsiny ny + cos 2 * (x + y) = cos 2x

CBSE X Maths Introduction to Trigonometry

Show that … cosec theta minus 2sin cube theta upon 2cos cube theta minus cos theta is equals to tan theta

CBSE XII Commerce Maths

If f(x) = sinx +sin? (x + 7/3) + cos2.cos (x + (x+5) and g(5/4) = 1, then (gof)(x) =

ICSE IX Maths Trigonometry

If cos A + sec A = 2, find value of cos2 A + sec2 A. 

ICSE X Maths Trigonometrical Identities

find  x if :- sin 47 sec 43 +cos43 cosec 47- cos square 45 ° =0

ICSE IX Maths Trigonometry

Sin A + cosec A = 2

CBSE XI Science Maths

2 sin 67 1/2° cos22 1/2°= ?

ICSE IX Maths Trigonometry

please give me the answer of attached question

ICSE X Maths Trigonometrical Identities

cot2 A - cos2 A = cot2 A × cos2 A

ICSE X Maths Trigonometrical Identities

tan2-sin2=tan2.sin2

CBSE X Maths

Sin 300°- Cos 330°

CBSE X Maths Introduction to Trigonometry

question number 32

ICSE IX Maths Trigonometry

if CosA+secA= 2, find the value of cosA2 and secA2

ICSE X Maths Trigonometrical Identities

(sin A+ cos A) (sec A+ cosec A) = 2+sec A.cosec A

ICSE IX Maths Trigonometry

(tan 60 + 1 / tan 60 - 1 )^2 = 1 + cos 30 / 1 - cos 30

CBSE XII Science Maths

find the number of solutions of the equation 6cosec²theta-5cosecthetha+1=0

CBSE X Maths Introduction to Trigonometry

SHOW THAT cos 38°cos 52°- sin 38°sin 52° =0

CBSE X Maths Introduction to Trigonometry

sin teta + 2cos teta =1 prove that 2sin teta - cos teta =2

CBSE X Maths Introduction to Trigonometry

evaluate cos150

ICSE X Maths Trigonometrical Identities

prove that

JEE Main Maths Trigonometry

plese solve it in detail with step by step explanation  

CBSE X Maths Introduction to Trigonometry

In ∆abc , Lb= 90 and tanA = 1/√3 . Find sinA cosC + cosA since  

JEE Main Maths Trigonometry

tan tita+sec tita -1/tan tita-sec tita+1

JEE Main Maths Trigonometry

let f(theta)=[1+(4sintheta/sin6theta)] [1+(4sin2theta/sin5theta)]

CBSE X Maths Introduction to Trigonometry

prove that 1+sina-cosa/1+sina+cosa=√1-cos/√1+cosa

CBSE X Maths Some Applications of Trigonometry

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.

CBSE X Maths Introduction to Trigonometry

tanA =cotB find A+B=?

CBSE X Maths Introduction to Trigonometry

evaluate sin 45°+ cos 45°?

JEE Main Maths Trigonometry

cos x=-1/2,x lies in which quadrant

CBSE X Maths Introduction to Trigonometry

write all the other trigonometric ratios of angle a in terms of cosecant a

ICSE X Maths Trigonometric Identities

Please help me to solve the question.

ICSE X Maths Trigonometric Identities

Please help me to solve the question

JEE Main Maths Trigonometry

what is tan45+cot55

NEET NEET Physics Kinematics

If tantita- √5\2 then value of cos tita is

CBSE X Maths Introduction to Trigonometry

if cosec∅+cot∅=k then show that cos∅k²-1/k²+1

CBSE X Maths Pair of Linear Equations in 2 Variables

maths

CBSE X Maths Introduction to Trigonometry

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

CBSE X Maths Introduction to Trigonometry

prove that cosec-cot A) ^2 = 1-Cos A/ 1+ cos A

CBSE X Maths Introduction to Trigonometry

Please sir solve this

CBSE XI Science Maths Complex Numbers and Quadratic Equations

Pls solve

CBSE X Maths Introduction to Trigonometry

if altitude of sun is 60 degrees then height of vertical tower that will cast shadow of lenght 20m

ICSE X Maths Trigonometric Identities

Prove that (sin^2 theta - 1)(tan^2 theta + 1) + 1 = 0