# Precalculus

posted by
**Joseph**
.

Having trouble with this:

Verify:

csc^4x-cot^4x=2csc^2x-1

*the numbers after the carets are to the power of

posted by
**Joseph**
.

Having trouble with this:

Verify:

csc^4x-cot^4x=2csc^2x-1

*the numbers after the carets are to the power of