Question

1/(cos(2*y)-cos(y)^2) How can I simplify this?:(

Answer 1

`-csc^2(y)`

Explanation:

`1/(cos(2y)-cos^2(y))=`

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

`1/-sin^2(y)`

`-csc^2(y)`