Question

How do you simplify `csc^2 Ø - 1`?

Answer 1

Simplify: `csc^2 x - 1`

Ans: `cot^2 x`

Explanation:

`1/sin^2 x - 1 = (1 - sin^2 x)/sin^2 x = cos^2 x /sin^2 x = cot^2 x`