Question

Sinx+sin^2x=1,then cos^2x+cos^4x=

Answer 1

Answer:

1

Step-by-step explanation:

sin x + $sin^{2}x$ = 1

=> sin x = 1 - $sin^{2}x$ = $cos^{2}x$

=> sin x = $cos^{2}x$

$cos^{2}x$ + $cos^{4}x$

= sin x +  $sin^{2}x$

= 1