Let f(x, y) = x² + y² – 2a°y- if (x, y) # (0,0), - (14 + y²)² ' and f(0, 0) = 0. Show that f is continuous at the origin; • f has a minimum at (0,0) along any straight line through (0,0); f has NO minimum at (0,0).
Let f(x, y) = x² + y² – 2a°y- if (x, y) # (0,0), - (14 + y²)² ' and f(0, 0) = 0. Show that f is continuous at the origin; • f has a minimum at (0,0) along any straight line through (0,0); f has NO minimum at (0,0).
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter3: Functions
Section3.3: More On Functions; Piecewise-defined Functions
Problem 99E: Determine if the statemment is true or false. If the statement is false, then correct it and make it...
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Calculus
Please solve this question with relevant working.
![Let
f(x, y) = x² + y? – 2x°y
4x°y?
(r4 + y?)2 '
if (x, y) # (0,0),
and f(0,0) = 0. Show that
• f is continuous at the origin;
f has a minimum at (0,0) along any straight line through (0,0);
f has NO minimum at (0,0).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F372ed87c-03f1-4ddf-a754-fda92e9474ec%2F9c241543-522b-41e7-bfa0-5247878f8002%2Fowyo1w_processed.png&w=3840&q=75)
Transcribed Image Text:Let
f(x, y) = x² + y? – 2x°y
4x°y?
(r4 + y?)2 '
if (x, y) # (0,0),
and f(0,0) = 0. Show that
• f is continuous at the origin;
f has a minimum at (0,0) along any straight line through (0,0);
f has NO minimum at (0,0).
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