(1)/(8)(3-4cos2 theta+cos4 theta)=

The vlaue of 1/8(3-4cos 2 theta + cos 4 theta) is

The vlaue of 1/8(3-4cos 2 theta + cos 4 theta) is

the value of 1/8 (3-4 cos 2 theta + cos 4 theta ) is

The value of (1)/(8) (3 - 4 cos 2 theta + cos 4 theta) is

Prove that, 8 sin^(4) theta = 3 - 4 cos 2 theta + cos 4 theta

The value of (sin2 theta+sin4 theta)/(1+cos2 theta+cos4 theta) is equal to

Prove that, 8 cos^(4) theta = 3 + 4 cos 2 theta + cos 4 theta

(tan5 theta+tan3 theta)/(tan5 theta-tan3 theta)=4cos2 theta cos4 theta

Prove that (tan5 theta+tan3 theta)/(tan5 theta-tan3 theta)=4cos2 theta cos4 theta

If theta be any real, prove that : cos4 theta=1-8 sin^2 theta cos^2 theta =1-8 cos^2 theta +8 cos^4 theta .