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Let F(x, Y, Z) = y3y ^ { 3 } Z -

Question 75

Multiple Choice

Let f(x, y, z) = y3y ^ { 3 } z - x2x ^ { 2 } y + xyz\sqrt { x y z } - 1x\frac { 1 } { x } . Find fy\frac { \partial f } { \partial y } .


A) 3y23 y ^ { 2 } - 2x + 1
B) 3y23 y ^ { 2 } z - x2x ^ { 2 } + xz2xyz\frac { x z } { 2 \sqrt { x y z } }
C) 3y23 y ^ { 2 } z - x2x ^ { 2 } + x7\sqrt { x _ { 7 } }
D) 3y23 y ^ { 2 } z - x2x ^ { 2 } + xzxyz\frac { x z } { \sqrt { x y z } } + 1x2\frac { 1 } { x ^ { 2 } }
E) none of these

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