Find $f _ { y k }$ For the Function $f ( x , y ) = 4 x ^ { 3 } y - 7 x y ^ { 2 }$

question 7

Short Answer

Find $f _ { y k }$ for the function $f ( x , y ) = 4 x ^ { 3 } y - 7 x y ^ { 2 }$ .

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