Here's the question you clicked on:
bridgetx516x
cscx/cosx - cosx/sinx. simplify as much as possible
\[\csc x=\frac{1}{\sin x}\\ \frac{\csc x}{\cos x}-\frac{\cos x}{\sin x}=\frac{1}{\cos x\sin x}-\frac{\cos x}{\sin x}\\ = \frac{1-\cos^2 x}{\cos x\sin x}\] you can go from there, right?
the answer should be \(\tan x\)