Question

If sinA+sin^2A=1, then find the value of cos^2A+cos^4A

Answer 1

HERE IS UR ANSWER
sin A +sin^2A= 1

sina+1−cos2a=1

sina−cos2a=0

sina=cos2a

Squaring both sides

(sina)2=(cos2a)2

sin2a=cos4a

use sin2θ+cos2θ=1:

1−cos2a=cos4a

1=cos4a+cos2a



Hope U understand
Thanks
and
Mark me as the BRAINLIEST