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

If sinx+ sin^2x =1 , then cos^8x+ 2cos^6x +cos^4x =

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

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

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 write the value of cos^(8)x+2cos^(6)x+cos^(4)x

If sin x+sin^2=1 , then cos^8 x+2 cos^6 x+cos^4 x=

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

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

Select and write the correct answer from the given alternatives in each of the following:If sinx+sin^2x=1 ,then cos^8x+2cos^6x+cos^4x =….