Find the directions in which the function increases and decreases most rapidly at Po. Then find the derivatives of the function in those directions. f(x,y.z) = In (xy) +5 In (yz) + In (xz), Po(1,1,1)
Find the directions in which the function increases and decreases most rapidly at Po. Then find the derivatives of the function in those directions. f(x,y.z) = In (xy) +5 In (yz) + In (xz), Po(1,1,1)
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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
Transcribed Image Text:**Homework: HW 14.5 Directional Derivatives and Gradient Vectors**
**Question 8, 14.5.x**
**Part 1 of 4**
Find the directions in which the function increases and decreases most rapidly at \( P_0 \). Then find the derivatives of the function in those directions.
\( f(x, y, z) = \ln(xy) + 5 \ln(yz) + \ln(xz), \quad P_0 (1, 1, 1) \)
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