`cos 6x = 32 cos^6 x- 48 cos^4 x +18 cos^2 x -1`

Prove that : cos 6x=32 cos^6 x -48cos^4 x - 18 cos^2 x -1

Prove that: cos6x=32cos^6x-48cos^4x+18cos^2x-1

if sin x +sin^2 x = 1 then cos^12 x+ 3 cos^10 x + 3 cos^8 x + cos ^6 x =

Prove that cos6A=32cos^6A-48cos^4A+18cos^2A-1

cos 6x = cos ^(2) 3x - sin ^(2) 3x

int cos 2x . cos 4x . cos 6x dx

Show that : 2 (sin^6 x + cos^6 x) -3 (sin^4 x + cos^4 x) + 1 =0 .

int ((cos 6x+6cos 4x+ 15 cos 2x+10)/(10 cos ^(2) x +5 cos x cos 3 x+ cos x cos 5 x ))dx =f (x)+C, then f (10) is equal to:

If sinx+sin^2x=1 , then find the value of cos^(12)x +3cos^(10)x + 3 cos^8x + cos^6x-1

If f(x) = cos x cos 2x cos 4x cos (8x). cos 16x then find f' (pi/4)