Question

(sin square theta / 1- cos theta) (sin square theta /1+ cos theta ) (Cosec square theta) =1​

Answer 1

Answer:

Step-by-step explanation:

For convenience let theta =x.

1+cosx(1-cos x) =sin^2 x

Sin^2x(cosec^2x) =1.

This would be more easy if you know trigonometric identities