EC > GATE 2023 > Multivariable Calculus
The rate of increase of a scalar field f(x, y, z) = xyz in the direction v = (2, 1, 2) at a point (0, 2, 1) is
A
$\frac{2}{3}$
B
$\frac{4}{3}$
C
2
D
4

Correct : C

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