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:1. Find the extrema and/or the saddle points of the functions.
a) f(x, y) = 9 - 2x + 4y - x² - 4y²
b) f(x,y) = x³y + 12x² − 8y
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c) f(x, y) = x² + y4 - 4xy + 2
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