Calculus, 9th edition
(a)
Observe the figure:
If , then the graph of has horizontal tangent line at .
at and .
(b)
If exists at the inflection point, then .
at and .
(c)
does not exist at .
(d)
has relative maximum at .
(e)
has a point of inflection at and .
(a) at and .
(b) at and .
(c) does not exist at .
(d) has relative maximum at .
(e) has a point of inflection at and .
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