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Find the Value of the Gradient Vector Field of the Function

Question 221

Multiple Choice

Find the value of the gradient vector field of the function f(x,y,z) =x2y3zf ( x , y , z ) = x ^ { 2 } y ^ { 3 } z at the point (1,1,1) ( 1,1 , - 1 ) .


A) 2i3j+k- 2 \mathbf { i } - 3 \mathbf { j } + \mathbf { k }
B) 2i+3j+k2 \mathbf { i } + 3 \mathbf { j } + \mathbf { k }
C) 3i2j+k3 \mathbf { i } - 2 \mathbf { j } + \mathbf { k }
D) 3i+2jk3 \mathbf { i } + 2 \mathbf { j } - \mathbf { k }
E) 6i6j+k6 \mathbf { i } - 6 \mathbf { j } + \mathbf { k }
F) 6i+6jk6 \mathbf { i } + 6 \mathbf { j } - \mathbf { k }
G) ij+k\mathbf { i } - \mathbf { j } + \mathbf { k }
H) i+jk\mathbf { i } + \mathbf { j } - \mathbf { k }

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