sin^(4)x+2cos^(2)x-cos^(4)x=310tan x

sin^(4)x-cos^(4)x=sin^(2)x-cos^(2)x

sin^(4)x-cos^(4)x=sin^(2)x-cos^(2)x

Evaluate: int(1)/(sin^(4)x+sin^(2)x cos^(2)x+cos^(4)x)dx

Prove that sin^(4)x-cos^(4)x=sin^(2)x-cos^(2)x

Prove that sin^(4)x-cos^(4)x=sin^(2)x-cos^(2)x

2cosx-cos3x-cos5x= ............... A) 16 cos ^(3) x sin ^(2) x B) 16 sin^(2) x cos ^(2) x C) 4 cos ^(2) x sin ^(2) x D) 4 sin ^(2) x cos ^(2)x

If sin x+sin^(2)x+sin^(3)x=1 then cos^(6)x-4cos^(4)x+8 cos^(2)x=

If sin^(2)4x+cos^(2)x=2sin4x cos^(2)x, then

If sin x + sin^(2) x =1 " then " cos^(8) x + 2 cos^(6) x + cos^(4) x =