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task: i'm trying to divide the differential dA by dV

where.. dA = differential surface area of a sphere, dV = differential volume of a sphere

dA=8[itex]\pi[/itex]rdr

dV=4[itex]\pi[/itex]r^{2}dr

so then dA/dV= 2/r

Also, if i treat this as a derivative, then would dA/dV = 1/dr?

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# Differentials of spherical surface area and volume

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