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The Gradient Of f(x,y,z)=2x3+xy2+z2xf ( x , y , z ) = 2 x ^ { 3 } + x y ^ { 2 } + z ^ { 2 } x

Question 44

Multiple Choice

The gradient of f(x,y,z) =2x3+xy2+z2xf ( x , y , z ) = 2 x ^ { 3 } + x y ^ { 2 } + z ^ { 2 } x at (1, 1, 1) is


A) 8i+2j+2k- 8 \mathbf { i } + 2 \mathbf { j } + 2 \mathbf { k }
B) 8i2j2k8 \mathbf { i } - 2 \mathbf { j } - 2 \mathbf { k }
C) 8i+2j2k8 \mathbf { i } + 2 \mathbf { j } - 2 \mathbf { k }
D) 8i+2j+2k8 \mathbf { i } + 2 \mathbf { j } + 2 \mathbf { k }
E) 8i2j+2k8 \mathbf { i } - 2 \mathbf { j } + 2 \mathbf { k }

Correct Answer:

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