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Advanced Trigonometric Formulae

Kerala XI Science Maths Trigonometric Functions

Solve Sin2x-Sin4x+Sin6x=0.
 

Asked by Deebu 3rd February 2015 3:52 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

The points A, B, C, D, E are marked on the circumference of a circle in clockwise direction such that angle ABC=130o and angle CDE=110o. The measure of angle ACE in degree is

a a)        50 o    b) 60 o              c) 70 o              d) 80 o

Asked by Anil 22nd August 2017 9:01 PM
Answered by Expert

CBSE XI Science Maths Sequences and Series

Q-15 IS ATTACHED
 
Question Img

Asked by mahesh_udr2000 29th August 2017 3:29 PM
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CBSE XI Science Maths Trigonometric Functions

Can you please solve this ? And give detail answer.
 
Question Img

Asked by Varsneya Srinivas 20th October 2017 5:20 PM
Answered by Expert

JEE Plances JEE (Main) Maths

O3 plsQuestion Img

Asked by Tanishq 25th October 2017 6:49 AM
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JEE Plances JEE (Main) Maths Trigonometric Ratios, Identities and Equations

Question ImgQ11pls

Asked by Tanishq 25th October 2017 5:17 PM
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JEE Plances JEE (Main) Maths Trigonometric Ratios, Identities and Equations

Q14plsQuestion Img

Asked by Tanishq 25th October 2017 5:20 PM
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JEE Plances JEE (Main) Maths Trigonometric Ratios, Identities and Equations

Q22 plsQuestion Img

Asked by Tanishq 25th October 2017 5:33 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

prove that sine square eighteen degree plus cosine square thirty six degree  is equal to three by four

Asked by hrushikesh.barik 30th October 2017 8:27 PM
Answered by Expert

JEE Plances JEE (Main) Maths Trigonometric Ratios, Identities and Equations

Question ImgQuestion Imgques 7 and ques 6

Asked by rbhatt16 6th November 2017 5:52 PM
Answered by Expert

JEE Plances JEE (Main) Maths Trigonometric Ratios, Identities and Equations

I didnt get what you have done after fi ding tan2x

Asked by chandanbr6004 9th November 2017 9:44 AM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

Prove that:
(i) cos(A-B)= cosAcosB + sinAsinB
(ii)cos(A+B)= cosAcosB - sinAsinB

Asked by sunil2791 14th November 2017 7:46 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

Solve  Sin(2x) > (Cosx)^2

Asked by sudhanshubhushanroy 15th November 2017 8:28 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

Solve
Sin(2x) > Squart(2)*Sinx^2 + ( 2 - Squart2 )*Cosx^2

Asked by sudhanshubhushanroy 15th November 2017 8:42 PM
Answered by Expert

JEE Plances ALL Class Maths Trigonometric Ratios, Identities and Equations

Question Imgplease solve the question

Asked by jaychandran1967 7th December 2017 5:36 PM
Answered by Expert

JEE Plances ALL Class Maths Trigonometric Ratios, Identities and Equations

Question Img17

Asked by rbhatt16 7th December 2017 8:48 PM
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JEE Plances ALL Class Maths Solutions of Triangle

Question Img3

Asked by rbhatt16 7th December 2017 9:10 PM
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JEE Plances ALL Class Maths Trigonometric Ratios, Identities and Equations

Question Imgques 8

Asked by rbhatt16 12th December 2017 4:11 PM
Answered by Expert

JEE Plances ALL Class Maths Trigonometric Ratios, Identities and Equations

Question Imgques 16

Asked by rbhatt16 12th December 2017 4:21 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

Question ImgThe question is attached above. Please send step by step complete solution. I also request you please do not send any web link to this question because I am unable to  open the link every time  .

Asked by sudhanshubhushanroy 14th December 2017 6:47 AM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

The question is attached above. Please send step by step complete solution. I also request you please do not send any web link to this question because I am unable to  open the link every time  .Question Img

Asked by sudhanshubhushanroy 14th December 2017 6:55 AM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

sin 3x + sin 2x - sin x = 4 sin x cos x/2 cos 3x/2

Asked by haroonrashidgkp 20th December 2017 11:35 AM
Answered by Expert

CBSE X Maths Introduction to Trigonometry

If tan A = 5/6 and tan B = 1/11 , Then (A+B) =?
  1. pie/2
  2. pie/4
  3. 3pie/2
  4. nome of these

Asked by sucharitasahoo1 26th December 2017 6:18 PM
Answered by Expert

JEE Plances JEE (Main) Maths

  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
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

please help along with me...

Asked by nitishkrnehu09 6th February 2018 9:20 PM
Answered by Expert

JEE Plances JEE (Main) Maths

prove that 1)sin square + cos square dived by sinsquare -cos square = 1 2) if the given eq is not equal to RHS then find value of LHS  

Asked by futureisbright051101 21st February 2018 7:19 PM
Answered by Expert

CBSE XI Commerce Maths

Question no. 24

Asked by Payal 22nd February 2018 10:05 AM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

If 13θ= π , find the value of 3θ+cos5θ + 2cosθcos9θ

Asked by tps.mjmdr 16th June 2018 5:40 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

If acos θ = bcos (θ+120°) = c cos (θ+240°) , then find the value of 1/a+1/b+1/c

Asked by tps.mjmdr 16th June 2018 5:45 PM
Answered by Expert

JEE Plances JEE (Main) Maths

If angle of a triangle are in AP and the length of the two larger sides of the triangle are 10 and 9 units then find the length of the smallest side? 

Asked by Sumantkashyap1111 6th July 2018 2:11 PM
Answered by Expert

JEE Plances JEE (Main) Maths

Prove that

Asked by Anish 6th July 2018 10:18 PM
Answered by Expert

JEE Plances JEE (Main) Maths

Prove that

Asked by Anish 6th July 2018 10:21 PM
Answered by Expert

JEE Plances JEE (Main) Maths

Prove that

Asked by Anish 9th July 2018 1:08 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

cos 840 find the value

Asked by ramakoti61 9th July 2018 8:45 PM
Answered by Expert

JEE Plances JEE (Main) Maths Trigonometric Ratios, Identities and Equations

Prove that 

Asked by Anish 11th July 2018 1:33 PM
Answered by Expert

JEE Plances JEE (Main) Maths

Prove that

Asked by Anish 11th July 2018 1:37 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

Please give full solution with explanation 

Asked by rtortechger.official 12th July 2018 7:42 PM
Answered by Expert

ICSE X Maths

If cos(a-b)+cos(b-c)+cos (c-a)= -3?2 ; then prove that  cos a +cos b+cos c+sin a +sinb +sinc=0 

Asked by keshavendu35 17th August 2018 12:10 AM
Answered by Expert

ICSE X Maths

in triangle abc , cos a=sin b/2sinc then show that triangle abc is isosceles

Asked by keshavendu35 19th August 2018 12:35 AM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

Which of the following is the correct option?

Asked by dineshchem108 3rd September 2018 9:03 AM
Answered by Expert

CBSE XI Science Maths

Find the value

Asked by dineshchem108 3rd September 2018 10:24 AM
Answered by Expert

CBSE XII Science Maths

tan(B+C)+tan(C+A)+tan(A+B)  tan(π-A)+tan(π-B)+tan(π-C)   

Asked by Shubhamjoliya786 10th September 2018 11:35 AM
Answer Verified by Expert

CBSE XII Science Maths Integrals

Integration ex (2 – sin 2x/1- cos2x)dx  explain in great detail

Asked by haroonrashidgkp 26th October 2018 9:39 AM
Answered by Expert

CBSE X Maths

Solve this qus

Asked by ss2044161 1st November 2018 8:31 AM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

For any real x find the minimum and maximum value for the expression 3sin^2x +3sinxcosx + 7cos^2x.

Asked by acv27joy 10th December 2018 1:10 PM
Answered by Expert

JEE Main Maths Trigonometry

Sir pls solve the following.

Asked by rsudipto 5th January 2019 9:19 AM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

In ∆ABC, If r1=8, r2=12, r3=24,Show that a=12,b=16,c=20. (From 

Asked by Soma 4th March 2019 11:18 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

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
Answered by Expert

CBSE XI Commerce Maths

cos7x + cos5x/ sin7x- sin 5x =cotx

Asked by sanjeevnayan3 1st June 2019 8:58 AM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

Pls solve.

Asked by pb_ckt 11th June 2019 3:34 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

Pls sol ve

Asked by pb_ckt 11th June 2019 3:35 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

Pls solve it.

Asked by pb_ckt 12th June 2019 2:36 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

pls solve

Asked by pb_ckt 14th June 2019 11:19 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

Pls answer the attached questions ASAP

Asked by hunte2931 17th June 2019 4:49 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

Please someone solve No. 15.iii)

Asked by jiujam 6th July 2019 3:34 PM
Answered by Expert

CBSE XI Science Maths Trigonometric Functions

clear my doubt

Asked by kandukuriPraneeth16 25th July 2020 6:18 PM
Answered by Expert

ICSE X Maths Trigonometrical Identities

cot2 A - cos2 A = cot2 A × cos2 A

Asked by akbarreshma123 24th October 2020 8:35 PM
Answered by Expert

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