Question

Verify the trig identity

Answer 1

-\[1-\frac{ \cos^2(x) }{ 1+sinx }=sinx\]

Answer 2

\[\cos^2\left( x \right)=1-\sin^2\left( x \right)=\left( 1-\sin \left( x \right) \right)\left( 1+\sin \left( x \right) \right)\]