The integral function is
.
The value of the function is
, where
and
are continuous.
Evaluate the integral using integration by parts.
\Integration by parts formula :
.
Assume
and
.
Consider
.
Differentiate on each side.
\
.
.
Integrate on each side.
\
.
Substitute the corresponding values in the formula.
\
Consider
.
Assume
and
.
Consider
.
Differentiate on each side.
\
.
.
Integrate on each side.
\
.
Substitute the corresponding values in the formula.
\
Substitute equation (2) in equation (1).
\

Thus,
.
.