### CBSE X Mathematics Introduction to Trigonometry

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

### CBSE X Mathematics

## ## tanA+secA-1/tanA-secA+1=1+sinA/cosA

**Adithya Rao**18th May 2014 8:49 AM

### CBSE X Mathematics Introduction to Trigonometry

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

**Shumitha**4th October 2017 9:59 PM

### JEE Plances JEE (Main) Mathematics Trigonometric Ratios, Identities and Equations

## Q17 pls

**Tanishq**25th October 2017 5:21 PM

### JEE Plances JEE (Main) Mathematics Trigonometric Ratios, Identities and Equations

## Q20

**Tanishq**25th October 2017 5:23 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**arup_chakraborty2007**10th November 2017 2:52 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**pdcavita**18th November 2017 11:35 AM

### CBSE X Mathematics Introduction to Trigonometry

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

**pdcavita**18th November 2017 12:42 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**pdcavita**18th November 2017 12:46 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**pdcavita**18th November 2017 1:13 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**pdcavita**19th November 2017 2:11 PM

### CBSE X Mathematics Introduction to Trigonometry

## 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 .

**sucharitasahoo1**30th November 2017 9:06 PM

### JEE Plances ALL Class Mathematics

## please solve the questions from 13-16

**jaychandran1967**11th December 2017 5:54 PM

### JEE Plances ALL Class Mathematics

## plese solve the question

**jaychandran1967**17th December 2017 10:38 AM

### JEE Plances JEE (Main) Mathematics

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

**shahsamaira2**8th January 2018 5:28 PM

### ICSE X Mathematics Trigonometrical Identities

## Plz solve ques 51 urgently

**lovemaan5500**14th January 2018 2:18 PM

### ICSE X Mathematics

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

**Yesan**27th January 2018 5:30 PM

### ICSE X Mathematics Trigonometric Identities

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

**Harshit**27th January 2018 8:18 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**gpnkumar0**28th January 2018 8:08 PM

### ICSE X Mathematics

## trignometry identies

**404152280012660**4th February 2018 10:34 AM

### ICSE X Mathematics Trigonometrical Identities

## Plz answer 1 part

**lovemaan5500**4th February 2018 5:37 PM

### ICSE X Mathematics Trigonometrical Identities

## Plz.answer 2nd part

**lovemaan5500**4th February 2018 5:38 PM

### ICSE X Mathematics Trigonometrical Identities

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

**bdroy_2014**7th February 2018 9:51 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**pdcavita**8th February 2018 7:57 PM

### ICSE X Mathematics Trigonometric Identities

**nandinidwivedi062002**11th February 2018 12:45 PM

### ICSE X Mathematics Trigonometrical Identities

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

**nandinidwivedi062002**11th February 2018 12:51 PM

### CBSE X Mathematics

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

**manasvi.gopani**14th February 2018 12:40 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**Rohit S**14th February 2018 8:30 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**DG**16th February 2018 6:30 PM

### ICSE X Mathematics Trigonometrical Identities

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

**subhasray1968**17th February 2018 12:10 AM

### CBSE X Mathematics Introduction to Trigonometry

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

**ihsanansar123**20th February 2018 11:58 AM

### ICSE X Mathematics Trigonometrical Identities

## C part circled

**lovemaan5500**22nd February 2018 6:25 AM

### ICSE X Mathematics Trigonometrical Identities

## 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)

**Sanjeev**22nd February 2018 5:41 PM

### ICSE X Mathematics Trigonometrical Identities

## Plz solve 15

**Jatinaa786**24th February 2018 1:07 PM

### ICSE X Mathematics Trigonometrical Identities

## Q9 b part

**lovemaan5500**26th February 2018 7:00 AM

### CBSE X Mathematics Introduction to Trigonometry

## pls explain

**gpnkumar0**3rd March 2018 9:47 PM

### CBSE X Mathematics Introduction to Trigonometry

## pls prove

**gpnkumar0**26th March 2018 10:09 PM

### CBSE X Mathematics Introduction to Trigonometry

## I want learn all the identities of trigonometry

**Saurav**28th March 2018 7:46 AM

### ICSE X Mathematics Trigonometrical Identities

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

**Sunita**31st March 2018 7:53 PM

### ICSE X Mathematics Trigonometric Identities

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

**suryasonawane11**1st April 2018 9:13 PM

### ICSE X Mathematics Trigonometric Identities

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

**Sunita**3rd April 2018 8:36 PM

### ICSE X Mathematics Trigonometrical Identities

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

**Sunita**3rd April 2018 8:40 PM

### ICSE X Mathematics Trigonometrical Identities

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

**Sunita**3rd April 2018 8:41 PM

### ICSE X Mathematics

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

**Sunita**5th April 2018 3:54 PM

### ICSE X Mathematics

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

**Sunita**5th April 2018 3:59 PM

### ICSE X Mathematics

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

**Sunita**5th April 2018 4:02 PM

### CBSE XI Science Mathematics

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

**Shivendra**22nd April 2018 10:09 AM

### CBSE X Mathematics Introduction to Trigonometry

## please sir help me to solve this query

**krishdabhoya2003**10th June 2018 12:43 PM

### CBSE XI Science Mathematics Trigonometric Functions

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

**Anish**16th June 2018 8:38 AM

### JEE Plances JEE (Main) Mathematics Trigonometric Ratios, Identities and Equations

## Prove the following identity.

**Anish**16th June 2018 4:42 PM

### CBSE XI Science Mathematics Trigonometric Functions

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

**tps.mjmdr**16th June 2018 5:42 PM

### JEE Plances JEE (Main) Mathematics Trigonometric Ratios, Identities and Equations

## Prove that

**Anish**30th June 2018 1:08 PM

### CBSE XI Science Mathematics Trigonometric Functions

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

**rajkumarpandey3783**6th July 2018 9:02 PM

### CBSE XI Science Mathematics Trigonometric Functions

## (sinø-cosø)^2=1-sin2ø

**abhaysharma2710**15th July 2018 10:09 AM

### CBSE X Mathematics Introduction to Trigonometry

## Prove that:

**1784393325200864**16th July 2018 6:30 AM

### CBSE X Mathematics Introduction to Trigonometry

## Prove that:

**1784393325200864**16th July 2018 6:31 AM

### JEE Plances JEE (Main) Mathematics

## Solve it

**hariom2083**20th July 2018 12:29 AM

### ICSE XI Science Mathematics

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

**SanskarAgarwal86**6th August 2018 10:25 PM

### ICSE X Mathematics Trigonometric Identities

## Please tell me

**siddharthjaiswal1122**22nd August 2018 9:44 AM

### CBSE XI Science Mathematics

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

**nishantkushwaha512**22nd August 2018 3:05 PM

### CBSE XI Science Mathematics

## If acosA-bsinA=c

Prove that. asinA+bcosA=

**kahafnaaz243**23rd August 2018 9:47 PM

### ICSE X Mathematics Trigonometrical Identities

## if 9sinß+40cosß=41 proov 41cosß=40

**dr_pradip27121972**8th September 2018 11:13 AM

### Maharashtra X Mathematics

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

**pandeydn4332**21st September 2018 11:52 PM

### CBSE X Mathematics

##
then show that tan=

**dilwalevk143**22nd September 2018 1:53 PM

### CBSE X Mathematics

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

**Soumyaputtige262**1st October 2018 8:55 PM

### CBSE XII Science Mathematics Integrals

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

**haroonrashidgkp**18th October 2018 4:31 PM

### ICSE X Mathematics Trigonometrical Identities

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

**jaiswalsindhuli717**9th November 2018 4:12 PM

### ICSE X Mathematics Trigonometric Identities

## cot^2A -cos ^2A =cos ^2A ×cot ^2A

**dantkalesamarth**22nd November 2018 10:03 PM

### ICSE X Mathematics Trigonometrical Identities

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

**nidhimehendre**25th December 2018 10:02 PM

### ICSE X Mathematics Trigonometric Identities

## Prove that

**debabratap261**18th January 2019 10:24 AM

### ICSE X Mathematics Trigonometric Identities

##

if cos A + sin A= cos A

show that cos A-sin A= sin A

**shivasanthosh0804**23rd January 2019 6:18 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**guptaabhinav0809**10th February 2019 11:44 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**Kumarashish6345**21st February 2019 8:03 AM

### CBSE X Mathematics Introduction to Trigonometry

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

**adityaagrawal020503**21st February 2019 11:30 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**Kumarashish6345**22nd February 2019 8:57 AM

### CBSE X Mathematics Some Applications of Trigonometry

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

**Soma**28th February 2019 3:45 PM

### CBSE X Mathematics Introduction to Trigonometry

## solution for this

**ABHILASHA**5th March 2019 11:18 PM

### CBSE X Mathematics Introduction to Trigonometry

## solution required as early as possible...

**ABHILASHA**5th March 2019 11:20 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**youngster.tamizha2468**6th March 2019 3:37 PM

### CBSE X Mathematics Introduction to Trigonometry

## Please prove

**mebakyabum**9th May 2019 9:48 AM

### CBSE XI Science Mathematics Trigonometric Functions

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

**aahnik.mohanty**29th May 2019 7:56 PM

### CBSE XI Science Mathematics Trigonometric Functions

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

**aahnik.mohanty**29th May 2019 8:00 PM

### CBSE XI Science Mathematics Trigonometric Functions

## tanx=root n where n belongs to N2 then sec 2x is always-

rational irrational positive or negative?

**aahnik.mohanty**29th May 2019 8:02 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**shivengrover12**16th June 2019 10:28 AM

### ICSE X Mathematics Trigonometrical Identities

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

**Arihantkothari33**11th July 2019 7:17 PM

### ICSE X Mathematics Trigonometrical Identities

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

**ketakiudeshi**13th July 2019 2:10 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**haraulakh1999**21st July 2019 9:40 AM

### CBSE XI Science Mathematics Trigonometric Functions

## 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)]

**sajal2402**30th July 2019 11:19 AM

### ICSE X Mathematics Trigonometrical Identities

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

**ak7658270**30th July 2019 9:30 PM

### ICSE X Mathematics Trigonometric Identities

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

**grandhienterprises13**8th August 2019 7:16 AM

### ICSE IX Mathematics Trigonometry

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

**sannoysubir**9th September 2019 12:02 AM

### CBSE X Mathematics Introduction to Trigonometry

## sinx - cosx = root2 find tanx

**tarunn250**24th September 2019 10:45 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**giridipak451**4th October 2019 10:01 PM

### ICSE X Mathematics Trigonometrical Identities

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

**gsamarth458**12th October 2019 8:33 AM

### CBSE X Mathematics Introduction to Trigonometry

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

**ruhirathiya**17th October 2019 5:23 AM

### JEE Main Mathematics Trigonometry

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

**rishabhsankla1**13th November 2019 12:29 AM

### JEE Main Mathematics Trigonometry

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

**rishabhsankla1**26th November 2019 8:20 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**Nganesh101**2nd January 2020 11:48 AM

### ICSE X Mathematics Trigonometric Identities

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

**ayush421301**6th January 2020 12:48 AM

### CBSE X Mathematics Introduction to Trigonometry

## (1+secA)/secA = sin²A/(1-cosA)

**nijurajeev7276**7th January 2020 10:27 AM

### CBSE X Mathematics Introduction to Trigonometry

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

**singh.dh**12th January 2020 10:42 PM

### CBSE X Mathematics Introduction to Trigonometry

## 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

**Kanchanchandra.1989**14th January 2020 10:58 AM

### CBSE X Mathematics Introduction to Trigonometry

## Evaluate cos48°cos42°–sin48°sin42°

**Maharanam446**22nd January 2020 1:21 PM

### CBSE X Mathematics Introduction to Trigonometry

## ok

**sonupbhoye1**29th January 2020 10:56 AM

### CBSE X Mathematics Introduction to Trigonometry

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

**subbukum**12th February 2020 5:52 PM

### ICSE X Mathematics Trigonometrical Identities

## my doubt is regarding trigonometry

**sintra16**27th February 2020 9:27 PM

### ICSE X Mathematics Trigonometric Identities

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

**nid0409**2nd March 2020 11:04 AM

### ICSE X Mathematics Trigonometric Identities

## .

**Kanwaranita10**3rd March 2020 2:40 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**raunakkarn555**6th April 2020 8:58 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**gurunath196107**7th April 2020 4:21 PM

### CBSE X Mathematics Introduction to Trigonometry

## maths sums

**gurvinderr043**12th April 2020 8:18 AM

### JEE Main Mathematics Trigonometry

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

**saikatsukai514**17th April 2020 7:41 AM

### ICSE X Mathematics Trigonometrical Identities

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

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

### JEE Main Mathematics 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?

**sarn1027**5th May 2020 2:44 PM

### ICSE X Mathematics Trigonometrical Identities

## sec⁴A(1-sin⁴A)-2tan²A =1

**jatinder324**10th May 2020 4:21 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**Battulasirichanda**16th May 2020 3:21 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**firdoshisk**19th May 2020 6:22 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**abulhussain3438**28th May 2020 8:03 AM

### CBSE X Mathematics Introduction to Trigonometry

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

**pandeydivyanshu42**19th June 2020 12:52 PM

### CBSE X Mathematics Introduction to Trigonometry

## I want answer

**grisha1310cherry**21st June 2020 6:13 PM

### CBSE X Mathematics Introduction to Trigonometry

## I need the solution of the doubt given below

**jayadevi9757**27th June 2020 10:56 AM

### CBSE X Mathematics Introduction to Trigonometry

## Cos2a=Sin(3a-35)

**rach4315**28th June 2020 11:28 AM

### CBSE X Mathematics Introduction to Trigonometry

## plz solve this question

**ishangoswami006**5th July 2020 10:21 AM

### CBSE X Mathematics Introduction to Trigonometry

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

**harishankarpandabrl**9th July 2020 3:37 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**sy2121426**20th July 2020 7:57 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**harshrajesh9**28th July 2020 12:52 PM

### ICSE X Mathematics Trigonometrical Identities

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

**Vru23**28th July 2020 8:18 PM

### ICSE X Mathematics Trigonometrical Identities

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

**Vru23**28th July 2020 8:20 PM

### ICSE X Mathematics Trigonometrical Identities

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

**Vru23**28th July 2020 11:18 PM

### CBSE XI Science Mathematics 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°?

**Pallapothu.a**5th August 2020 4:13 PM

### CBSE X Mathematics Introduction to Trigonometry

## question

**arindeep.singh**20th August 2020 6:58 PM

### CBSE X Mathematics Introduction to Trigonometry

## how to prive

**farkadeamol9**28th August 2020 10:53 AM

### CBSE XI Science Mathematics Trigonometric Functions

## pls clear the doubt, dear sir/ madam

**sachitshanchinal**2nd September 2020 2:53 PM

### CBSE X Mathematics Introduction to Trigonometry

## question

**arindeep.singh**10th September 2020 7:04 PM

### ICSE X Mathematics Trigonometrical Identities

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

**prashanshajain35**16th September 2020 2:20 PM

### CBSE XI Science Mathematics Trigonometric Functions

## if tan(pie/4+teta)+tan(pie/4-teta)=3

**Madhavipamarthi1977**16th September 2020 8:18 PM

### ICSE X Mathematics Trigonometrical Identities

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

**Sujalgoyal**20th September 2020 9:30 AM

### CBSE XI Science Mathematics Trigonometric Functions

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

**apnp31**21st September 2020 12:19 PM

### ICSE X Mathematics Trigonometric Identities

## prove that : 1-cos²ø=sin²ø

**mariannepearl113**21st September 2020 2:41 PM

### ICSE X Mathematics Trigonometrical Identities

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

**gaddamyashwanthr**21st September 2020 9:00 PM

### CBSE X Mathematics Introduction to Trigonometry

## please help me to solve this problem

**kalladaprem**24th September 2020 8:20 AM

### CBSE X Mathematics Introduction to Trigonometry

## please help

**satishcharan533**24th September 2020 2:50 PM

### CBSE XI Science Mathematics Trigonometric Functions

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

**bandlapravalika4**25th September 2020 1:32 PM

### CBSE X Mathematics Introduction to Trigonometry

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

**pramoddomarp121**26th September 2020 6:01 PM

### CBSE XI Science Mathematics Trigonometric Functions

## 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)

**shanujam03**3rd October 2020 8:59 PM

### CBSE XI Science Mathematics Trigonometric Functions

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

**nareshpanchal76**7th October 2020 10:13 AM

### CBSE XI Science Mathematics

## 2 sin 67 1/2° cos22 1/2°= ?

**sahookishorechandra967**17th October 2020 7:46 AM

### CBSE X Mathematics Introduction to Trigonometry

## question number 32

**fk0391851**22nd December 2020 11:10 AM

### CBSE X Mathematics Introduction to Trigonometry

## Cosec²72° - tan²18°=1

**abhishekmonupatel27**23rd February 2021 4:31 PM

### ICSE X Mathematics Trigonometrical Identities

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

**kotharianaiya9**6th March 2021 12:15 PM

### ICSE X Mathematics Trigonometrical Identities

## sec²a.cosec²a = tan²a + cot²a+ 2

**rakshitsujata1**7th April 2021 8:44 AM

### CBSE X Mathematics Introduction to Trigonometry

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

**manish.mayuka**2nd May 2021 2:02 PM