Prove that `(2cos2^(n)theta+1)/(2 cos theta+1)=(2cos theta-1)(2cos 2 theta1)xx(cos2^(2)theta-1)......(2cos 2^(n-1)theta-1)`.

Prove that: (2cos2^ntheta+1)/(2costheta+1)=(2costheta-1)(2cos2theta-1)(2cos2^2theta-1) ...(2cos2^(n-1)theta-1)

Prove that : (2 cos 2^n theta + 1)/(2 cos theta +1) = (2 cos theta -1) (2 cos 2theta -1) (2 cos 2^2 theta -1) … (2 cos 2^(n-1) theta -1)

Prove that sin^(2) theta + cos^(2) theta =1

If (2^n+1)theta=pi then 2^n costheta cos2theta cos2^2 theta .......cos 2^(n-1) theta=

Prove that (1 - cos 2 theta)/( sin 2 theta) = tan theta.

cos^2theta (1+sin^(2) theta )=1

Prove that sin(2theta)/(1-cos2theta)=cot theta

Prove that: (sin2theta)/(1+cos2theta)=t a ntheta

Prove that: (sin2theta)/(1+cos2theta)=t a ntheta

Prove that: (sin2theta)/(1-cos2theta)=cottheta