Home
Class 11
MATHS
cos2theta=(sqrt(2)+1)(costheta-(1)/(sqrt...

`cos2theta=(sqrt(2)+1)(costheta-(1)/(sqrt(2)))` then general value fo `theta` is

A

`2npi+-(pi)/(6)`

B

`npi+(pi)/(12)`

C

`npi+(7pi)/(36)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

If "tan"theta/(2)=1/(2) , then the value of "sin"theta is

If sintheta_(1)sintheta_(2)-costheta_(1)costheta_(2)+1=0 , then the value of tan(theta_(1)//2)cot(theta_(2)//2) is always equal to

Prove that cos^2theta=(1+cos2theta)/2

Solve sqrt(3)costheta+sintheta=sqrt(2) .

If cos theta+sin theta=sqrt(2) cos theta ,then show that cos theta-sin theta=sqrt(2) sin theta

if cos theta_(1) + cos theta_(2) + cos theta_(3)= sin theta_(1) + sin theta_(2) + sin theta_(3)= 0 , then the value of cos (theta_(1) + theta_(2)) + cos (theta_(2) + theta_(3)) + cos (theta_(3) + theta_(1)) is

If 0 lt theta lt (pi)/(2) and tan theta = (sqrt(5))/(2) then cos theta is equal to