The value of `1/8(3-4cos2theta+cos4theta)` is (A) `cos 4theta` (B) `sin 4theta` (C) `sin ^4 theta` (D) `cos^4 theta`

The value of (1)/(8)(3-4cos2 theta+cos4 theta) is (A)cos4 theta(B)sin4 theta(C)sin^(4)theta(D)cos^(4)theta

8 sin theta * cos theta * cos 2 theta * cos 4 theta = A) sin 4 theta B) sin 8 theta C) sin 16 theta D) cos 8 theta

If sin theta + cos theta = a " then " sin^(4) theta + cos^(4) theta =

4 sin theta * cos^(3) theta-4 cos theta * sin ^(3)theta= A) 4 cos theta B) cos 4 theta C) 4 sin theta D) sin 4 theta

sin theta cos ^ (3) theta-cos theta sin ^ (3) theta = (1) / (4) sin4 theta

1-8 cos ^(2) theta + 8 cos ^(4) theta= A) sin 4 theta B) cos 4 theta C) sin ^(4) theta + cos ^(4) theta D) sin ^(4) theta - cos ^(4) theta

If sin theta+cos theta=a then sin ^(4) theta+cos ^(4) theta=

If (sin theta+cos theta)/(sin theta-cos theta)=3 then sin^4 theta-cos^4 theta=

The value of cos^4theta+sin^4theta-6cos^2theta is (a) cos2theta (b) sin2theta (c) cos4theta (d) none of these