The function is
and the interval is
.
Absolute maxima or minima exist either at the end points or at the critical numbers.
\Find the critical numbers :
\The function is
.
Differentiate
on each side with respect to
.

Apply quotient rule of derivatives :
.

.
.
is undefined when denominator is zero.
Find the values where the denominator is zero.
\
Since
is not in the interval
, the function
is undefined at
.
Equate
to zero.

Since
is not in the interval
, the solution is
.
The critical numbers are
and
.
The end points are
and
.
Find the value of
at the critical numbers.
Substitute
in
.

Find the value of
at the end points of the interval.
Substitute
in
.

Substitute
in
.

Since the largest value is
, absolute maximum is
.
Since the smallest value is
, absolute minimum is
.
\
Absolute maximum is
.
Absolute minimum is
.