Question

How do you simplify `(1-cos^2x)/sinx`?

Answer 1

Use `cos^2 x + sin^2 x = 1` to find:

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

Explanation:

Since `cos^2 x + sin^2 x = 1`, we find:

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