2. Consider the surface f(x, y) = x² + y² = x² + 2xy - y² - a) Find all critical points of f (Hint, the origin is one such point). b) Try to use the second derivative test to classify the point at the origin. This procedure will NOT work! c) Use MATLAB to graph this function, and submit your picture with this assignment. Looking at the plot, does the critical point at the origin appear to be a saddle, local max, or local min? d) Using algebraic methods, justify rigorously your classification in part c).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Plz solve this not reject plz solve all parts kindly and take a thumb up plz
2. Consider the surface f(x, y) = x² + y² = x² + 2xy - y²
-
a) Find all critical points of f (Hint, the origin is one such point).
b) Try to use the second derivative test to classify the point at the origin. This
procedure will NOT work!
c) Use MATLAB to graph this function, and submit your picture with this assignment.
Looking at the plot, does the critical point at the origin appear to be a saddle,
local max, or local min?
d) Using algebraic methods, justify rigorously your classification in part c).
Transcribed Image Text:2. Consider the surface f(x, y) = x² + y² = x² + 2xy - y² - a) Find all critical points of f (Hint, the origin is one such point). b) Try to use the second derivative test to classify the point at the origin. This procedure will NOT work! c) Use MATLAB to graph this function, and submit your picture with this assignment. Looking at the plot, does the critical point at the origin appear to be a saddle, local max, or local min? d) Using algebraic methods, justify rigorously your classification in part c).
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