The integral is
.
is improper when the denominator
.

.
The integral is undefined at
, which lies in the interval
.
has infinite discontinuity at
.
If
is continuous on the interval
, except for some
in
at which
has an infinite discontinuity, then
, the limit exists then function is convergent.


Therefore, the integral is converges.
\
has infinite discontinuity at
.
The integral converges.