There are two vertical asymptotes, at x=3pi/4 and
x=7pi/4 and two removable
discontinuities, at x=pi/2 and x=3pi/2 (where tan(x) is undefined, but
the limit exists).
There are two vertical asymptotes, at x=3pi/4 and
x=7pi/4 and two removable
discontinuities, at x=pi/2 and x=3pi/2 (where tan(x) is undefined, but
the limit exists).