The integral is
.
Find the integral using integration by parts.
\Formula for integration by parts is
.
Here consider
,
.
Consider
.
Differentiate on each side.
\
.
Find
by integrating
.

.
Substitute
and
values in the formula.


.
Graph :
\Graph the integrand
:
.gif\")
Observe the graph :
\The value of the definite integral is
.
.