Which of the following functions has a minimum at (3,-2) but no maxima? A. f(x, y) = x + 2y - 5 B. f(x, y) = 1-x² - y² C. f(x, y) = 1-2x - x² + 4y - 2y² D. f(x, y) = 13- 6x + x² + 4y + y²
Which of the following functions has a minimum at (3,-2) but no maxima? A. f(x, y) = x + 2y - 5 B. f(x, y) = 1-x² - y² C. f(x, y) = 1-2x - x² + 4y - 2y² D. f(x, y) = 13- 6x + x² + 4y + y²
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Which of the following functions has a minimum at (3,-2) but no maxima?
A. f(x, y) = x + 2y - 5
B. f(x, y) = 1- x² - y²
C. f(x, y) = 1-2x − x² + 4y - 2y²
D. f(x, y) = 13− 6x + x² + 4y + y²
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