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1. Find the gradient of the function f(x, y, z) = ln(xy) - zx² at the point (1, 1,-1). 2. Find the directional derivative of the function f(x, y, z) = ln(xy) - zx² at the point (1, 1,-1) in the direction of the vector < 1, -3,1 >.

1. Find the gradient of the function f(x, y, z) = ln(xy) - zx² at the point (1, 1,-1). 2. Find the directional derivative of the function f(x, y, z) = ln(xy) - zx² at the point (1, 1,-1) in the direction of the vector < 1, -3,1 >.

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.3: Lines
Problem 32E
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Part c: ( 1. Find the gradient of the function f(x, y, z) = (1, 1,-1). 2. Find the directional derivative of the function f(x, y, z) = ln(xy) - zx² at the point (1, 1,-1) in the direction of the vector < 1, -3, 1 >. In(xy) - zx² at the point
Transcribed Image Text:Part c: ( 1. Find the gradient of the function f(x, y, z) = (1, 1,-1). 2. Find the directional derivative of the function f(x, y, z) = ln(xy) - zx² at the point (1, 1,-1) in the direction of the vector < 1, -3, 1 >. In(xy) - zx² at the point
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