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Calculate fx\frac { \partial f } { \partial x } fy\frac { \partial f } { \partial y }

Question 55

Multiple Choice

Calculate fx\frac { \partial f } { \partial x } , fy\frac { \partial f } { \partial y } , and fz\frac { \partial f } { \partial z } when defined. f(x,y,z) =x0.6y0.1z0.6f ( x , y , z ) = x ^ { 0.6 } y ^ { 0.1 } z ^ { 0.6 }


A) fx=0.6x0.4y0.1z0.6\frac { \partial f } { \partial x } = 0.6 x ^ { - 0.4 } y ^ { 0.1 z ^ { 0.6 } } , fx=0.1x0.6y0.9z0.6\frac { \partial f } { \partial x } = 0.1 x ^ { 0.6 } y ^ { - 0.9 } z ^ { 0.6 } , fz=0.6x0.6y0.1z0.4\frac { \partial f } { \partial z } = 0.6 x ^ { 0.6 } y ^ { 0.1 } z ^ { - 0.4 }
B) fx=0.6x0.4y0.1z0.6\frac { \partial f } { \partial x } = 0.6 x ^ { - 0.4 } y ^ { 0.1 z ^ { 0.6 } } , fx=0.1x0.6y0.1z0.6\frac { \partial f } { \partial x } = 0.1 x ^ { 0.6 } y ^ { - 0.1 z ^ { 0.6 } } , fz=0.6x0.6y0.1z0.6\frac { \partial f } { \partial z } = 0.6 x ^ { 0.6 } y ^ { 0.1 } z ^ { - 0.6 }
C) fx=0.6x0.4y0.1z0.6\frac { \partial f } { \partial x } = 0.6 x ^ { - 0.4 } y ^ { 0.1 z ^ { 0.6 } } , fx=0.1x0.6y0.4z0.1\frac { \partial f } { \partial x } = 0.1 x ^ { 0.6 } y ^ { - 0.4 } z ^ { 0.1 } , fz=0.6x0.6y0.6z0.9\frac { \partial f } { \partial z } = 0.6 x ^ { 0.6 } y ^ { 0.6 } z ^ { - 0.9 }
D) fx=0.1x0.9y0.1z0.6\frac { \partial f } { \partial x } = 0.1 x ^ { - 0.9 } y ^ { 0.1 } z ^ { 0.6 } , fx=0.1x0.6y0.4z0.6\frac { \partial f } { \partial x } = 0.1 x ^ { 0.6 } y ^ { - 0.4 z ^ { 0.6 } } , fz=0.6x0.6y0.1z0.4\frac { \partial f } { \partial z } = 0.6 x ^ { 0.6 } y ^ { 0.1 } z ^ { - 0.4 }
E) fx=0.6x0.4y0.9z0.4\frac { \partial f } { \partial x } = 0.6 x ^ { - 0.4 } y ^ { 0.9 } z ^ { 0.4 } , fx=0.1x0.6y0.9z0.6\frac { \partial f } { \partial x } = 0.1 x ^ { 0.6 } y ^ { - 0.9 } z ^ { 0.6 } , fz=0.6x0.6y0.1z0.4\frac { \partial f } { \partial z } = 0.6 x ^ { 0.6 } y ^ { 0.1 } z ^ { - 0.4 }

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