Home
Class 12
MATHS
If tan^(2) A= 2 tan ^(2) B+1, then 2 cos...

If `tan^(2) A= 2 tan ^(2) B+1, then 2 cos 2A + 1= `

A

`cos 2A `

B

`sin 2A `

C

`cos 2 B`

D

`sin 2B`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC RATIOS AND IDENTITIES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 1 D ( TRANSFORMATIONS )|94 Videos

  • TRIGONOMETRIC RATIOS AND IDENTITIES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 1 E ( TRIGONOMETRIC IDENTITIES )|49 Videos

  • TRIGONOMETRIC RATIOS AND IDENTITIES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 1 B ( COMPOUNDS ANGLES )|106 Videos

  • TRIGONOMETRIC EQUATIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) SET - 4|4 Videos

Similar Questions

Explore conceptually related problems

If tan^(2) A= 2 tan ^(2) B+1, "then " cos 2A + sin^(2)B =

If tan A = 1//2 , tan B=1//3 " then " cos 2A=

If 2 Cos^(2)B - 1 = Tan^(2) A then Cos A Cos B =

If tan^(2) A + tan^(2)B+tan^(2)C -tan B tan c-tan C tan A-tan A tan B=0 then DeltaABC is

In Delta ABC, if tan ""(A)/(2), tan""(B)/(2) , tan""(C)/(2) are in A.P. then cos A , cos B , cos C are in

IF tan^2 theta=2 tan^2 phi +1 then find the value of cos 2 theta+sin^2 phi .

If tan(A+B) = m and tan (A - B) = n , find tan 2A and tan 2B in terms of m and n (mn != 1)

In Delta ABC, tan 2A+ tan 2B+ tan 2C=

If int (1)/(2 + cos x) dx = A tan^(-1) (B. tan""(x)/(2) ) + c then (A, B) =