Question

I need to simplify sec^2(x)/sec^2(x)-1

Answer 1

`(\sec^2x)/(\sec^2x-1)=(\sec^2x)/(\tan^2x)=\frac{\frac1{\cos^2x}}{(\sin^2x)/(\cos^2x)}=\frac1{\sin^2x}=\csc^2x`