General value of theta obtained from the...

General value of `theta` obtained from the equation `cos 2 theta = sin alpha` is

A

`2theta= pi/2-alpha`

B

`theta= 2npi pm (pi/2-alpha)`

C

`theta=(n pi +(-1)^(n) alpha)/(2)`

D

`theta= n pi pm (pi/4 - alpha/2)`

Verified by Experts

The correct Answer is:

D

Similar Questions

Explore conceptually related problems

The general value theta obtained from the equation cos3theta=sinalpha is

Find the general value of theta from the equation costheta+cos2theta + cos3theta=0 .

Find the general value of theta which satisfies the equation (cos theta+i sin theta)(cos2 theta+i sin2 theta)......(cos n theta+i sin n theta)=1

The general value of theta satisfying the equation 2sin^(2) theta -3 sin theta - 2=0 , is .

The most general solution of theta satisfying the equations sin theta=sin alpha and cos theta=cos alpha is

Find the general value of theta from the equation sinalpha+sin(alpha+theta)+sin(alpha+2theta)=0 .

Find the general value of theta from the following equations :2(cos^(2)theta-sin^(2)theta)=1

Among given values of theta which one satisfies the equation (cos theta)/(1- sin theta) -(cos theta)/(1 + sin theta) =2 ?