# pre-calc help !!!!!!!

posted by
**cindy** on
.

1) cscθsinθ-sin^2θ

2)sinθcscθ/tanθ

3)secθ/cotθ+tanθ

4)(1-cosθ)(1+cosθ)

posted by
**cindy** on
.

1) cscθsinθ-sin^2θ

2)sinθcscθ/tanθ

3)secθ/cotθ+tanθ

4)(1-cosθ)(1+cosθ)