Question

Prove that (〖sin〗^2 θ)/(1+cosθ)=1-cosθ

Answer 1

Explanation:

take it befor delete

Answer 2

proved

Explanation:

prove that : (sin^2 θ)/(1+cosθ)=1-cosθ

(sin^2θ)*(1−cosθ)/(1+cosθ)(1+cosθ) =

sin^2Ф)(1-cosФ)/1-cos^2Ф since 1-cos^2Ф=sin^2Ф then:

(sin^2Ф)(1-cosФ)/sin^2Ф =

1-cosФ (sin^2Ф/sin^Ф=1)

proved