`sin theta . Cosec theta` = ?

find the value sin^(2)theta*cosec theta =?

Prove that : (sin theta)/(1+cos theta) + (1+cos theta)/(sin theta)= 2 cosec theta .

Prove that: (sin theta)/(cot theta + "cosec"theta) = 2 + (sin theta)/(cot theta - "cosec"theta)

sin(pi+theta)sin(pi-theta)cosec^2theta=

If sin^2theta+cosec^2theta=2 then sin^4theta+cosec^2theta is :

Prove the following identity : (sin theta)/(cot theta+ cosec theta)=2+ (sin theta)/(cot theta- cosec theta) .