Question

prove the identity cos^2x+2/csc^2x=1+sin^2x

Answer 1

\(\bf {\color{blue}{ csc(\theta)=\cfrac{1}{sin(\theta)}}}\\ \quad \\ \quad \\

cos^2(x)+\cfrac{2}{csc^2(x)}=1+sin^2x\)

replace the csc(x), and simplify