If `sinx+sin^2x=1` then `cos^2x+cos^4x`

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

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 =….

If sinx+sin^(2)x=1 ,then cos^(4)x+cos^(2)x=?

If sinx+sin^(2)x=1 ,then cos^(4)x+cos^(2)x=?

If sinx + sin^(2)x =1 then cos^(12)2x + 3cos^(10)x+3cos^(8)x + cos^(6)x =

If sinx+sin^2x=1 then show that cos^2 x +cos^4 x=1

Which of the following functions is not periodie? |sin3x|+sin^2x cossqrt(x)+cos^2x cos4x+tan^2x cos2x+sinx

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