Electrical Engineering > GATE 2022 > Vector Calculus
Let f(x,y,z) = 4x2 + 7xy + 3xz2. The direction in which the function f(x,y,z) increases most rapidly at point P=(1,0,2) is
A
20î + 7ĵ
B
20î + 7ĵ + 12k̂
C
20î + 12k̂
D
20î

Correct : b

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