3. Given the function f(x, y, z) = In(x² + y² – 42²), find the directional derivative f, in the point (1, 2, 1) (a) in the direction v = 1 (b) in the direction of steepest ascent.

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ISBN:9780470458365
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3. Given the function f(x, y, z) = In(x² + y² – 42²), find the directional
derivative f, in the point (1, 2, 1)
(a) in the direction v =
1
(b) in the direction of steepest ascent.
Transcribed Image Text:3. Given the function f(x, y, z) = In(x² + y² – 42²), find the directional derivative f, in the point (1, 2, 1) (a) in the direction v = 1 (b) in the direction of steepest ascent.
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