Home
Class 12
MATHS
If 3sin^(2)theta + 2sin^(2)phi = 1 and 3...

If `3sin^(2)theta + 2sin^(2)phi = 1` and `3sin 2theta = 2sin 2phi`,`0lt0ltpi/2` and `0ltphiltpi/2`, then the value of `theta + 2phi` is :

A

`pi/2`

B

`pi/4`

C

0

D

None of these.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC RATIOS, IDENTITIES AND EQUATIONS

    MODERN PUBLICATION|Exercise MULTIPLE CHOICE QUESTION(LEVEL-II)|86 Videos
  • TRIGONOMETRIC RATIOS, IDENTITIES AND EQUATIONS

    MODERN PUBLICATION|Exercise LATEST QUSTIONS FROM AIEEE/JEE EXAMINATIONS|8 Videos
  • THREE DIMENSIONAL GEOMETRY

    MODERN PUBLICATION|Exercise Recent Competitive Questions (RCQs)|10 Videos
  • UNIT TEST PAPER NO - 4

    MODERN PUBLICATION|Exercise SELECT THE CORRECT ANSWER|25 Videos

Similar Questions

Explore conceptually related problems

If 3 sin 2 theta=2 sin 3 theta and 0 lt theta lt pi then sin theta=

If sin theta =1/3 , then find the value of (2cot^2 theta +2)

If sqrt(3) sin theta - cos theta = 0 and 0^(@) lt theta lt 90^(@) , find the value of theta .

sin^(6)theta+cos^(6)theta=1-3sin^(2)thetacos^(2)theta

sin^(6)theta=cos^(6)theta=1-3sin^(2)thetacos^(2)theta

If sin theta+cos theta=1 then the value of sin 2 theta is equal to

If tan theta = 3/4, cos^(2) theta - sin^(2) theta = _______

If lim_(x rarr 0) [1 + x In (1 + b^(2))]^(1/x) = 2b sin^(2) theta, b gt 0 and theta in (-pi, pi] , then the value of theta is :

If sin 2 theta+sin 2 phi=(1)/(2) and cos 2 theta+cos 2 phi=(3)/(2) then cos ^(2)(theta-phi)=

sin ^(6) theta+cos ^(6) theta+3 sin ^(2) theta . cos ^(2) theta=