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## Main Question or Discussion Point

please tell me if i did this correctly:

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

so then dA/dV= 2/r

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

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}drso then dA/dV= 2/r

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