The function is
.
Rewrite the function as
.
Differentiate the function with respect to
.
.
Product rule in derivatives:
.


.
Find extrema by equating the first derivative to zero.
\
Substitute the
values in original function.



.
\
Determine nature of the extrema, using second derivative test.
\Consider
.
Apply derivative with respect to
.


.
| Point | \Sign of ![]() | \
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\
| \
The function has absolute maximum at
.
For inflection points, equate second derivative to zero.
\

Solve for
.


.
Inflection point:
\


.
Inflection point is
.
Graph :
\Draw a coordinate plane.
\Graph the function
.
Observe the graph :
\The function has absolute maximum at
.
Inflection point is
.
The function has absolute maximum at
.
Inflection point is
.