Marginal revenue

G

Guest

Guest
The total revenue from the sale of x stereos is given
R(x)=1000[1- (x/600)]^2

find the marginal cost

I think I need to use the chain rule but I am not sure exactly how to use it on this type of problem
 
I am still having trouble working that one out all the (( and stuff our confusing me.

I found an answer and .003-600/x but that was by chance and I don't think this right. I did not keep my work on that one and now I am having trouble with it and it is an even problem in the book. Which the ones you have most trouble with always are the even ones.
 
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