The integral is
.
The values are
\
and
.
Part 2 of the fundamental theorem of calculus :
\If
is continuous on
,
.
Where
is any anti derivative of
, that is a function such that
.
Therefore,
.
Anti derivative of the derivative function is the function itself.
\Anti derivative of the derivative function
is
.

Substitue
and
in the above expression.

.
.