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What is the rate of change of the volume of a sphere with respect to the radius when the radius is

题目详情
What is the rate of change of the volume of a sphere with respect to the radius when the radius is
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答案和解析
V=(4/3)*pi*r^3
这里pi就是那个等于3.1415926的那个符号,我就照拼音打了;
r^3=r*r*r