If `sin x + sin ^(2) x=1 ` then the value of `(cos ^(8) x+2 cos ^(6)x +cos ^(4) x)` is-

If sin x + sin^(2) x= 1 , then the value of cos^(8) x - cos ^(4) x + 2cos^(2)x -1 is equal to :

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

If sin x + sin^(2)x = 1 , then what is the value of cos^(8)x + 2 cos^(6)x + cos^(4)x ?

If sin x+sin ^(2) x=1 then the value of cos ^(2) x+cos ^(4) x is

If sin x+sin^(2)x=1 then write the value of cos^(8)x+2cos^(6)x+cos^(4)x

if sin x + sin^2 x = 1 , then the value of cos^2 x + cos^4x is

if sin x + sin^2 x = 1 , then the value of cos^2 x + cos^4x is

if sin x + sin^2 x = 1 , then the value of cos^2 x + cos^4x is