Asked by KZAA
the volume V of a right circular cone of height h=8 feet and radius r feet is V=V(r)=2pier^2. If r is changing, find the instantaneous rate of change of the volume V with respect to the radius r at r=4.
Answers
Answered by
Steve
PI, not pie!
It's a Greek letter, not a dessert.
iv v = 2πr^2,
dv/dr = 4πr
now just plug in r=4
However, for a cone of height 8,
v = 8/3 πr^2
If that's what you want, make the necessary change to the above logic.
It's a Greek letter, not a dessert.
iv v = 2πr^2,
dv/dr = 4πr
now just plug in r=4
However, for a cone of height 8,
v = 8/3 πr^2
If that's what you want, make the necessary change to the above logic.
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