The right circular cylinder is designed to hold soft drink of
.
(a)
\Complete the table:
\Radius![]() | \
Height | \Surface area ![]() | \
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(b)
\Graph the surface area and label the minimum point:
\Using table feature of the graphing utility, complete the table:
\Radius ![]() | \
Surface area ![]() | \
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Observe the table:
\The minimum surface area is
at
.
(c)
\Find the surface area
as a function of
.
The srface area
.
(d)
\Graph the surface area:
.
Observe the graph:
\The minimum surface area is
at
.
(e)
\The surface area is
.
Apply derivative on each side with respect to
.




.
Find the critical numbers by equating
.





.
Substitute
in
.

.
The radius is
and height is
.
(a)
\Radius![]() | \
Height | \Surface area ![]() | \
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(b)
\Radius ![]() | \
Surface area ![]() | \
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The minimum surface area is
at
.
(c) The srface area
.
(d) Graph of
.
Observe the graph:
\The minimum surface area is
at
.
(e) The radius is
and height is
.