Question

Verify each identity:
(sin^2x-cos^2x)/(sinx+cosx)=sinx-cosx

Answer 1

\[\frac{ \sin ^{2}x-\cos ^{2}x }{ \sin x+\cos x }=\frac{ \left( \sin x+\cos x \right)\left( \sin x-\cos x \right) }{ \sin x+\cos x} =?\]

Answer 2

ohhh so we just cross it out?

Answer 3

yes

Answer 4

yw

Answer 5

thanks!!!!!!!! :)

Answer 6

@alessandro96