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## Prove that : cotA + cosecA - 1/cotA-cosecA+1 = 1+cosA / sinA

Asked by 20th September 2012 10:07 PM

## [sinA/(secA+tanA-1)]+[cosA/(cosecA+cotA+1)]

Asked by Shumitha 4th October 2017 9:59 PM

## Q17 pls

Asked by Tanishq 25th October 2017 5:21 PM

## Q20

Asked by Tanishq 25th October 2017 5:23 PM

## If √3 tan β = 3 sin β, prove that sin^2 β - cos^2 β = 1/3.

Asked by arup_chakraborty2007 10th November 2017 2:52 PM

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

Asked by pdcavita 18th November 2017 11:35 AM

## Prove that (tanΦ+1/cosΦ)² + (tanΦ - 1/cosΦ)² = 2(1+ sin² Φ/1- sin²Φ)

Asked by pdcavita 18th November 2017 12:42 PM

## If x = r sinAcosB,  y = r sinAcosB and z= r cosA, show that x² + y²+ z²= r².

Asked by pdcavita 18th November 2017 12:46 PM

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

Asked by pdcavita 18th November 2017 1:13 PM

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

Asked by pdcavita 19th November 2017 2:11 PM

## If cosectheta – sin theta= a and sec theta  – cos theta = b, then find the value of (a2b)2/3 + (ab2 ) 2/3 . (A) 0 (B) –1 (C) 2 (D) 1 (E) None of these   this is olympais question .. solve the with short time and tell me the process with steps proper .

Asked by sucharitasahoo1 30th November 2017 9:06 PM

## please solve the questions from 13-16

Asked by jaychandran1967 11th December 2017 5:54 PM

## plese solve the question

Asked by jaychandran1967 17th December 2017 10:38 AM

## With usual notation prove that 2 ( a sin^2 C/2+c sin^2 A/2 ) = a + c- b

Asked by shahsamaira2 8th January 2018 5:28 PM

## Plz solve ques 51 urgently

Asked by lovemaan5500 14th January 2018 2:18 PM

## (sinA + cosecA)2 + (cosA + secA)2 = 5 + sec2A x cosec2A

Asked by Yesan 27th January 2018 5:30 PM

## sin A(1+tan A)+cosa(1+cotA)=secA + cosecA

Asked by Harshit 27th January 2018 8:18 PM

## Prove that  (1 + cot A  + tan A) (sin A - cos A) = sin A tan A - cot A cos A

Asked by gpnkumar0 28th January 2018 8:08 PM

## trignometry identies

Asked by 404152280012660 4th February 2018 10:34 AM

### ICSE X Maths Trigonometrical Identities

Asked by lovemaan5500 4th February 2018 5:37 PM

### ICSE X Maths Trigonometrical Identities

Asked by lovemaan5500 4th February 2018 5:38 PM

## prove that: (sin A - cos A +1)/ ( sin A + cosA -1)= ( 1+ sin A )/ cosA

Asked by bdroy_2014 7th February 2018 9:51 PM

## If tanΦ + sinΦ =m and  tanΦ-sinΦ = n,  show that m²-n² = 4√mn

Asked by pdcavita 8th February 2018 7:57 PM

### ICSE X Maths Trigonometric Identities

Asked by nandinidwivedi062002 11th February 2018 12:45 PM

## secA -tanA/secA +tanA =1-2 secAtanA +2(tan)2 A

Asked by nandinidwivedi062002 11th February 2018 12:51 PM

## If cosecA - sinA = m and secA - cosA=n Prove that: m^2n raised to 2/3 + mn^2 raised to 2/3 = 1

Asked by manasvi.gopani 14th February 2018 12:40 PM

## (1+cotA+tanA)(sinA-cosA) = secA - cosecA ÷ cosec`2A - sec '2A = sinAtanA - cotAcosA

Asked by Rohit S 14th February 2018 8:30 PM

## If 5x sec and 5/x = tan theta find the value of 5(xsquare-1/xsquare)

Asked by DG 16th February 2018 6:30 PM

## prove that (sina-cosa+1)/(sina+cosa-1)=1/(seca-tana)

Asked by subhasray1968 17th February 2018 12:10 AM

## If cosA+sinA=√2,prove that cosA-sinA=√2sinA

Asked by ihsanansar123 20th February 2018 11:58 AM

## C part circled

Asked by lovemaan5500 22nd February 2018 6:25 AM

## Prove the following identity     a ) (sinA + cosec A)² + (cosA + secA)² = 5 + sec²A.cosec²A-      2.    Find the equation of the perpendicular bisector of the line segment joining A(4,2) and B(-3,-5)     3.    Using properties of proportion,find x : y if      a)  (x³+12x)/(6x² +8) = (y³+27y)/(9y²+27)

Asked by Sanjeev 22nd February 2018 5:41 PM

## Plz solve 15

Asked by Jatinaa786 24th February 2018 1:07 PM

## Q9 b part

Asked by lovemaan5500 26th February 2018 7:00 AM

## pls explain

Asked by gpnkumar0 3rd March 2018 9:47 PM

## pls prove

Asked by gpnkumar0 26th March 2018 10:09 PM

## I want learn all the identities of trigonometry

Asked by Saurav 28th March 2018 7:46 AM

## If sin A+cos A=√2 sin(90-A),show that cot A=√2+1

Asked by Sunita 31st March 2018 7:53 PM

## cot A + cosec A - 1 / cot A - cosec A + 1 = 1 + cos A / sin A

Asked by suryasonawane11 1st April 2018 9:13 PM

## Prove (Sin A+sec A)^2+(cosA+cosec A)^2=(1+secA.cosecA)

Asked by Sunita 3rd April 2018 8:36 PM

## Prove  (Tan A+sinA)/(tan A-sin A)=(secA+1)/(secA-1)

Asked by Sunita 3rd April 2018 8:40 PM

## 3 cosA=2sin^2A Find A

Asked by Sunita 3rd April 2018 8:41 PM

## prove sinA+cosA/(sinA-cosA)   +   sinA-cosA/(sinA+cosA)=1/(sin2A-cos2A)=2/(1-2cos2A)=2sec2A/(tan2A-1)

Asked by Sunita 5th April 2018 3:54 PM

## Prove Tan2A/(tan2A-1)   +   cosec2A/(sec2A-cosec2A)=1/(sin2A-cos2A)

Asked by Sunita 5th April 2018 3:59 PM

## Eliminate A Cot A+cosA=m & cotA—cosA=n

Asked by Sunita 5th April 2018 4:02 PM

## sin(a+b)= sina.cosb +cosa.sinb how?prove

Asked by Shivendra 22nd April 2018 10:09 AM

## please sir help me to solve this query

Asked by krishdabhoya2003 10th June 2018 12:43 PM

## cosec x (sec x - 1) - cot x (1 - cos x) = tan x - sin x Prove the Following Identity.

Asked by Anish 16th June 2018 8:38 AM

## Prove the following identity.

Asked by Anish 16th June 2018 4:42 PM

## Evaluate : (1+cos π/8 ) (1+cos 3π/8 ) (1+cos 5π/8 ) (1+cos 7π/8 )

Asked by tps.mjmdr 16th June 2018 5:42 PM

## Prove that

Asked by Anish 30th June 2018 1:08 PM

## (1+cosπ/8)(1+cos3π/8)(1+cos5π/8)(1+cos7π/8)=1/8

Asked by rajkumarpandey3783 6th July 2018 9:02 PM

## (sinø-cosø)^2=1-sin2ø

Asked by abhaysharma2710 15th July 2018 10:09 AM

## Prove that:

Asked by 1784393325200864 16th July 2018 6:30 AM

## Prove that:

Asked by 1784393325200864 16th July 2018 6:31 AM

## Solve it

Asked by hariom2083 20th July 2018 12:29 AM

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

Asked by SanskarAgarwal86 6th August 2018 10:25 PM

### ICSE X Maths Trigonometric Identities

Asked by siddharthjaiswal1122 22nd August 2018 9:44 AM

## [sin^2(x)+cos^2(x)]

Asked by nishantkushwaha512 22nd August 2018 3:05 PM

## If acosA-bsinA=c Prove that.   asinA+bcosA=

Asked by kahafnaaz243 23rd August 2018 9:47 PM

## Prove that ,tan thita/sec thita-1=tan thita+sec this+1/tan this+sec thita-1

Asked by pandeydn4332 21st September 2018 11:52 PM

## then show that tan=

Asked by dilwalevk143 22nd September 2018 1:53 PM

## IfcosA+sinA =√2cosA,prove that cosA-sinA=√2sinA

Asked by Soumyaputtige262 1st October 2018 8:55 PM

## Integration cosec3 x dx explain in great detail and give full solution

Asked by haroonrashidgkp 18th October 2018 4:31 PM

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

Asked by jaiswalsindhuli717 9th November 2018 4:12 PM

## cot^2A -cos ^2A =cos ^2A ×cot ^2A

Asked by dantkalesamarth 22nd November 2018 10:03 PM

## eliminate ß in the following epressions. tan ß + sin ß = p  and  tan ß - sin ß = q

Asked by nidhimehendre 25th December 2018 10:02 PM

## Prove that

Asked by debabratap261 18th January 2019 10:24 AM

## if cos A + sin  A=  cos A show that cos A-sin A= sin A

Asked by shivasanthosh0804 23rd January 2019 6:18 PM

## If  tan^2A=1-a^2, prove that secA+tan^3cosecA=(2-a^2)^3/2 please answer in a simple way.

Asked by guptaabhinav0809 10th February 2019 11:44 PM

## If cosA-sinA=root 2sinA  Prove that cos A +sinA=root 2 cosA

Asked by Kumarashish6345 21st February 2019 8:03 AM

## 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

## a cos theta + b sin theta = 5 find value of b cos theta - a sin theta​

Asked by Soma 28th February 2019 3:45 PM

## solution for this

Asked by ABHILASHA 5th March 2019 11:18 PM

## solution required as early as possible...

Asked by ABHILASHA 5th March 2019 11:20 PM

## If sin θ = 31 , then find the value of (2 cot2θ + 2)

Asked by youngster.tamizha2468 6th March 2019 3:37 PM

### CBSE X Maths Introduction to Trigonometry

Asked by mebakyabum 9th May 2019 9:48 AM

## sin^2n x+cos^2n x, minimum value?

Asked by aahnik.mohanty 29th May 2019 7:56 PM

## sinx1sinx2-cosx1cosx2+1=0 the value of tanx1/2*tanx2/2 is alwya equal to?

Asked by aahnik.mohanty 29th May 2019 8:00 PM

## tanx=root n where n belongs to N2 then sec 2x is always- rational irrational positive or negative?

Asked by aahnik.mohanty 29th May 2019 8:02 PM

## Prove that 1-tan²A/1+tan²A=cos²A-sin²A

Asked by shivengrover12 16th June 2019 10:28 AM

## Cosec^4A - cosec^2A = cot^4 + cot^2

Asked by Arihantkothari33 11th July 2019 7:17 PM

## sec A(1 -sec A)(sec A + tan A)= 1

Asked by ketakiudeshi 13th July 2019 2:10 PM

## cosec A+cot A/cosec A-cot A=(cosec A+cot A^2

Asked by haraulakh1999 21st July 2019 9:40 AM

## Find the values of x for which it satisfies tanx = cot 5 x as well as sin 2x = cos 4x [x€ (-π/2,π/2)]

Asked by sajal2402 30th July 2019 11:19 AM

## SinA+sinB/cosA-cosB+cosA+cosB/sinA-sinB=?

Asked by ak7658270 30th July 2019 9:30 PM

## Given: cosA = 5/13  evaluate: (I)sin A - cotA/ 2tanA (ii)cotA + 1/tanA

Asked by grandhienterprises13 8th August 2019 7:16 AM

## Simplify root of (1-sin square theta) /(1-cos square theta)

Asked by sannoysubir 9th September 2019 12:02 AM

## sinx - cosx = root2 find tanx

Asked by tarunn250 24th September 2019 10:45 PM

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

Asked by giridipak451 4th October 2019 10:01 PM

## this sum is of trignometry. cotA+cosecA-1/cotA-cosecA+1=i=cotA/sinA

Asked by gsamarth458 12th October 2019 8:33 AM

## Cos A/1+ sin A + 1+ sin A /cos A = 2 sec A

Asked by ruhirathiya 17th October 2019 5:23 AM

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

Asked by rishabhsankla1 13th November 2019 12:29 AM

## 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

## Solve - sinA^4+cosA^4+1=2sinA^2

Asked by Nganesh101 2nd January 2020 11:48 AM

## Cosec A /CosecA-1 + Cosec A/Cosec A+1 = 2 + 2tan^2A

Asked by ayush421301 6th January 2020 12:48 AM

## (1+secA)/secA = sin²A/(1-cosA)

Asked by nijurajeev7276 7th January 2020 10:27 AM

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

Asked by singh.dh 12th January 2020 10:42 PM

## Kindly solve If cos^4(A)/cos^2(B) + sin^4(A)/son^2(B)=1     Then prove that Cos^4(B)/cos^2(A) + sin^4(B)/sin^2(A) =1

Asked by Kanchanchandra.1989 14th January 2020 10:58 AM

## Evaluate cos48°cos42°–sin48°sin42°

Asked by Maharanam446 22nd January 2020 1:21 PM

## ok

Asked by sonupbhoye1 29th January 2020 10:56 AM

## Can you tell the answer for the 23rd question..

Asked by subbukum 12th February 2020 5:52 PM

## my doubt is regarding trigonometry

Asked by sintra16 27th February 2020 9:27 PM

## Prove the following identity :- (sinA + cosecA)^2 + (cosA + secA)^2 = 5 + sec^2A * cosec^2A

Asked by nid0409 2nd March 2020 11:04 AM

## .

Asked by Kanwaranita10 3rd March 2020 2:40 PM

## Cosec(theta) - cot(theta) = alpha then cosec(theta)+ cot( alpha)=?

Asked by raunakkarn555 6th April 2020 8:58 PM

## prove that cos theta by 1-tan theta+sin theta by 1- cot theta equals to sin theta+ cos theta

Asked by gurunath196107 7th April 2020 4:21 PM

## maths sums

Asked by gurvinderr043 12th April 2020 8:18 AM

## 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

## X=asec3A, y=btan3A . Eliminate  A between the given equation  ?

Asked by tamannasuri2996.10sdatl 4th May 2020 5:19 PM

## 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

## sec⁴A(1-sin⁴A)-2tan²A =1

Asked by jatinder324 10th May 2020 4:21 PM

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

Asked by Battulasirichanda 16th May 2020 3:21 PM

## Prove that 1+sinA -cosA/cosA-1+sinA =1+sinA/cosA

Asked by firdoshisk 19th May 2020 6:22 PM

## Prove the following trigonometric identity Cos^2(90°-theta) +Cos^2theta=sec^2(90°-theta) -cot^2theta

Asked by abulhussain3438 28th May 2020 8:03 AM

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

Asked by pandeydivyanshu42 19th June 2020 12:52 PM

### CBSE X Maths Introduction to Trigonometry

Asked by grisha1310cherry 21st June 2020 6:13 PM

## Cos2a=Sin(3a-35)

Asked by rach4315 28th June 2020 11:28 AM

## plz solve this question

Asked by ishangoswami006 5th July 2020 10:21 AM

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

Asked by harishankarpandabrl 9th July 2020 3:37 PM

## if sec theta+ tan theat =x , write the value of sec theta - tan theta in terms of X

Asked by sy2121426 20th July 2020 7:57 PM

## Prove that : √2+tan2 θ+cot2 θ=tan θ+cot θ

Asked by harshrajesh9 28th July 2020 12:52 PM

## prove that: cosA - 2cos^3A/2sin^3A - sinA = cotA

Asked by Vru23 28th July 2020 8:18 PM

## prove that: (sinA + cosecA)^2 + (cosA + secA)^2 = 7 + tan^2A + cot^2A

Asked by Vru23 28th July 2020 8:20 PM

## prove that: sin^3/cosA + sinAcosA = tanA

Asked by Vru23 28th July 2020 11:18 PM

## 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

## question

Asked by arindeep.singh 20th August 2020 6:58 PM

## Prove it

Asked by nishabr7 24th August 2020 10:49 PM

## pls clear the doubt, dear sir/ madam

Asked by sachitshanchinal 2nd September 2020 2:53 PM

## question

Asked by arindeep.singh 10th September 2020 7:04 PM

## tan^2 a - sin^2 a =

Asked by prashanshajain35 16th September 2020 2:20 PM

## Prove that √1+cosø/1 -cosø + √1-cosø/1+cosø = 2cosecø

Asked by Sujalgoyal 20th September 2020 9:30 AM

## 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

## prove that : 1-cos²ø=sin²ø

Asked by mariannepearl113 21st September 2020 2:41 PM

## prove that 3(sinA-cosA)^⁴+6(sinA+cosA)^²+(sin^⁶A+cos^⁶A)=14

### CBSE X Maths Introduction to Trigonometry

Asked by satishcharan533 24th September 2020 2:50 PM

## cos square (60-x) +cos square (60+x) belongs to

Asked by bandlapravalika4 25th September 2020 1:32 PM

## 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

## If A+B+C=pi , then equality of equation (1/2)(cosA cosB + cosB cosC + cosC cosA) must hold: a) <= 3/2.   b) >=(-3)   c) <=3/8   d) >=(-1)

Asked by shanujam03 3rd October 2020 8:59 PM

## Show that sum of 9 Sin4 θ - 6 Sin6 θ and 9 Cos4 θ - 6 Cos6 θ  remains constant for all values of θ.

Asked by nareshpanchal76 7th October 2020 10:13 AM

## 2 sin 67 1/2° cos22 1/2°= ?

Asked by sahookishorechandra967 17th October 2020 7:46 AM

## question number 32

Asked by fk0391851 22nd December 2020 11:10 AM

## Cosec²72° - tan²18°=1

Asked by abhishekmonupatel27 23rd February 2021 4:31 PM

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

Asked by kotharianaiya9 6th March 2021 12:15 PM

## sec²a.cosec²a = tan²a + cot²a+ 2

Asked by rakshitsujata1 7th April 2021 8:44 AM

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

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

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

Asked by ambarishpatil7 28th September 2021 8:49 PM

## sin25+sin210+sin215+......+sin2180

Asked by karthikeyainuguri2009 10th April 2022 3:01 PM

## 1/(sec(alpha) - tan alpha) - 1/(cos alpha) = 1/(cos alpha) - 1/(sec(alpha) + tan alpha)

Asked by amit.clw4 3rd June 2022 7:46 AM

### ICSE X Maths Trigonometric Identities

Asked by rashikulkarni28 8th June 2022 2:47 PM

### ICSE X Maths Trigonometrical Identities

Asked by rashikulkarni28 8th June 2022 3:14 PM

## To memorize trigonometry formulas ,please let me know if there is  any easy method ? -thanks

Asked by rashikulkarni28 10th June 2022 10:23 AM