Home
Class 10
MATHS
If cos2theta=sin4theta, here 2theta and ...

If `cos2theta=sin4theta`, here `2theta` and `4theta` are acute angles, then the value of `theta` is

A

`60^@`

B

`45^@`

C

`15^@`

D

`30^@`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • TANGENTS AND SECANTS TO A CIRCLE

    VGS PUBLICATION-BRILLIANT|Exercise EXERCISE|201 Videos

  • TRIGONOMETRY (MULTIPLE CHOICE QUESTION)

    VGS PUBLICATION-BRILLIANT|Exercise TRIGONOMETRY (MULTIPLE CHOICE QUESTION)|25 Videos

Similar Questions

Explore conceptually related problems

If cos 4 theta+sin 5 theta=2 then theta=

If 2-cos^(2)theta = 3 sin theta cos theta then theta =

If sin 2 theta = cos 3 theta and theta is an acute angle, then sin theta equals

If sin 6theta = sin 4theta - sin 2theta , then theta =

If |[1+sin^(2)theta,cos^(2)theta,4sin4theta],[sin^(2)theta, 1+cos^(2)theta,4sin4theta],[sin^(2)theta,cos^(2)theta, 1+4sin4theta]|=0 , then the value of theta is

If cos^(2)theta - sin theta = 1//4 then theta =

4 cos 6 theta cos 4 theta cos 2 theta =

If cos theta + sin theta =a , " then " sin 2 theta =

If 0 le theta le pr, cos 6theta + cos 4theta + cos 2theta + 1 =0 then the ascending order of the values of theta is