cos2 theta=cos^(2)theta

Solve: cos2theta=cos^(2)theta

Solve: cos2theta=cos^(2)theta

The solution of cos2theta=cos^(2)theta is:

The solution of cos2theta=cos^(2)theta is:

The solution set of cos2theta=cos^(2)theta-sin^(2)theta is …………

If (2^(n)+1)theta=pi then 2^(n)cos theta cos2 theta cos2^(2)theta......cos2^(n-1)theta=

Using induction,prove that cos theta cos2 theta cos2^(2)theta...cos2^(n-1)theta=(sin2^(n)theta)/(2^(n)sin theta)

If f(theta)=lim_(n rarr oo)cos theta cos2 theta cos2^(2)theta...*cos2^(n-1)theta, then |(1)/(pi)f((3 pi)/(2))|

If 5cos2 theta+2cos^(2)theta=0,-pi

The solution set of cos 2 theta = cos^(2) theta is