问道数学题

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the relationship between the rate of change of radius, surface area and volume of a sphere


-------------------------->RELATIONSHIP between dr/dt, dS/dt and dV/dt

---------------> with respect to time
 
就是calculus啊~
 
tell me the answer, i got a page of relationships, still ,tell me more
 
phys? I need more info about what you want
 
r as a function of t

sub r=f(t) into S(r) and V(r)

then you got S(t) and V(t)

take first order differentiaion of S(t) and V(t)

---------------> dS/dt and dV/dt
 
or you can do

dS/dt = dS/dr x dr/dt

dV/dt = dV/dr x dr/dt
 
楼主, 你也没交ASSIGNMENT啊..
我今天下课的时候跑得太快了,忘了交ASSIGNMENT
 
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