WeBWorK using host: https://math-webwork3.unl.edu, format: simple seed: 123567890

Let .

Determine all critical values of . If there is more than one, enter the
values as a comma-separated list.
Critical value(s) =

Construct a first derivative sign chart for and thus determine
all intervals on which is increasing or decreasing. If there is more than one, enter
the intervals as a comma-separated list. Use interval notation: for example,
(-17,20) is the interval , and (-inf, 40) is the interval
.
Interval(s) where is increasing:
Interval(s) where is decreasing:

Does have a global maximum? If so, enter its value. If not, enter DNE.
Global maximum =

Determine the following limits.

Explain why for every value of
.

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and this problem were assigned to you,
you would be able to submit an essay answer
that would be graded later by a human being.

Does have a global minimum? If so, enter its value. If not, enter DNE.
Global minimum =