The integral is
.
Integration by parts formula:
.
Assume
and
.
Find
by integrating
.

.
Differentiate on each side with respect to
.
\

.
Substitute
,
and
in integration by parts formula.

Consider
.
Find the integral using integration by parts.
\Let
and
.
.
.
Differentiate on each side with respect to
.
Substitute
,
, and
in integration by parts formula.
\ \
Substitute
in the expression
.

.
.