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# Partial Derivatives

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If f(x,-y) = x^3 + cosy, determine fxx and fxy.

##### Solution Summary

Partial derivatives are solved. The solution is concise, but thorough.

##### Solution Preview

First of all, I am not sure if you meant

f(x,-y) or f(x,y)

For this function, it does not matter since both are the same ...

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