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 from some
in
at which
has an infinite discontinuity, then
, the limit exists then function is convergent.
.
Therefore, the integral is diverges.
\ has infinite discontinuity at
.
The integral diverges.