Calculate Duf (2₁-4,1) in the direction of 9 = 2₁ +2²₁ +3k for the function f(x, y, z) = x² + 5xy-5y²-5x +Syz-3₂²² + 4xz

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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Calculate Duf (2₁-4,1) in the direction of 3 = 2₁ +2²₁ +3k for the
function f(x₁x₁ z) = x² + 5xy-5y²-5x +Syz -3₂² + 4xz
Transcribed Image Text:▷ Calculate Duf (2₁-4,1) in the direction of 3 = 2₁ +2²₁ +3k for the function f(x₁x₁ z) = x² + 5xy-5y²-5x +Syz -3₂² + 4xz
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