Here's the question you clicked on:
HPlourde
what is {cscx/(1+cscx)}-{cscx/(1-cscx)}
Are you trying to simplify it?
yes haha forgot to put that
I can give you a computer generated solution, which shows it being equal to sin(x)^2-1
Oh, why do we need computers.
that actually helps. cause now i can work backwards
\[\dfrac{\csc(x)}{1 - \csc(x)} - \dfrac{\csc(x)}{1 + \csc(x)} = \dfrac{\csc(x) + \csc^2(x)}{1 + \csc^2 (x)} - \dfrac{\csc(x) - \csc^2(x)}{1 + \csc^2(x)}\]