1. Simplifying Trig Functions

The origional problem was
Csc^2x(1-Cos^2x)
I used the Pythagorean Identityto simplify it to
Csc^2x(Sin^2x)
Is this all or is there more to simplifying this?

2. Look up, or recall, how cosecant (Csc) is defined. That should get the simplification going.

3. Thank you very much