Question

What is the value of (1 + cot² θ) sin² θ?

Answer 1

We have, 

`(1+cot^2 θ)sin^2θ= cosec^2θxxsin^2θ` 

`= (1/sinθ)^2 xx sin^2θ` 

= `1/sin^2θxxsin^2θ` 

`=1`