2021
Mathematics
JAMB
What is the rate of change of the volume V of a hemisphere with respect to its radius r when r = 2?
A.
8π
B.
16π
C.
2π
D.
4π
Correct Answer: 8π
Explanation
V=2/3 πr3 dV/dr = 2πr2 dV/dr(r = 2) = 2π(2)2 = 8π
V=2/3 πr3 dV/dr = 2πr2 dV/dr(r = 2) = 2π(2)2 = 8πTHIS WEEK's
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