Question: Given f ( x , y ) = 7 x 3 y 4 e 3 x - 1 5 y 4 s i n y

Given f(x,y)=7x3y4e3x-15y4siny, find the following:
a)fy
b)fxy
c)fyy
Given f ( x , y ) = 7 x 3 y 4 e 3 x - 1 5 y 4 s i

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