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Engineering Maths · Q176

Calculus

Engineering and GATE · Engineering Maths · question 176

Q176

The value of the directional derivative of the function \[ \](x, y, z) = xy2 + yz2 + zx2 at the point (2, -1, 1) in the direction of the vector p = i + 2j + 2k is

The value of the directional derivative of the function (x, y, z) = xy2 + yz2 + zx2 at the point (2, -1, 1) in the direction of the vector p = i + 2j + 2k is
A.
1
Answer
B.
0.95
C.
0.93
D.
0.9

Answer: Option A

Solution

Answer: Option A
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