Mathematics · Vector Calculus
Given the function f(x, y, z) = 4x2 + 7xy + 3xz2, the direction in which the function increases most rapidly at the point P(1, 0, 2) is given by:
- 120î + 7î
- 220î + 7î + 12k̂✓
- 320î + 12k̂
- 420î
Correct answer
20î + 7î + 12k̂
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