cos theta cos2 theta cos4 theta cos8 theta......cos2 theta=(sin2^(n)theta)/(2^(n)sin theta)

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

Prove that cos theta cos 2theta cos2^2 theta … cos 2^(n-1) theta = (sin2^n theta)/(2^n.sin theta) , for all n in N

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

cos theta+sin theta=cos2 theta+sin2 theta

8sin theta cos theta cos2 theta cos4 theta=sin x the x=

(3+cos4 theta)cos2 theta=4(cos^(8)theta-sin^(8)theta)

If m and n are positive integers satisfying 1+cos2 theta+cos4 theta+cos6 theta+cos8 theta+cos10 theta=(cos m theta*sin n theta)/(sin theta) then (m+n) is equal to

Prove that cos theta cos 2 theta cos 4 theta…. Cos 2 ^(n-1) theta = ( sin ( 2 ^(n) theta))/( 2 ^(n) (sin theta)) .

sin theta+sin2 theta+sin3 theta=1+cos theta+cos2 theta

8sin theta cos theta cos2 theta cos4 theta=sin x rArr x=