Find ddx[cscx]\frac{d}{dx}[\csc x]dxd[cscx].
−cscxcotx-\csc x \cot x−cscxcotx
cscxcotx\csc x \cot xcscxcotx
−csc2x-\csc^2 x−csc2x
csc2x\csc^2 xcsc2x