Consider the function (a) (b) (c) f(x, y) = x² + y² Verify that f(x, y) has a minimum at (0,0). Find the linear approximation L(x, y) of the function at (0,0). Find the quadratic approximation Q(x, y) of the function at (0,0). That is, the 2nd-degree Taylor Polynomial.

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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Consider the function
(a)
(b)
(c)
f(x, y) = €²²+y²
२२
e
Verify that f(x, y) has a minimum at (0,0).
Find the linear approximation L(x, y) of the function at (0,0).
Find the quadratic approximation Q(x, y) of the function at (0,0). That is, the
2nd-degree Taylor Polynomial.
(d)
Use a 3D grapher like Maple to verify that the linear approximation is tangent to
the surface z = f(x, y) at the given point and that the quadratic approximation is not
only tangent to the surface at the given point, but also shares the same concavity as the
surface at this point.
Transcribed Image Text:Consider the function (a) (b) (c) f(x, y) = €²²+y² २२ e Verify that f(x, y) has a minimum at (0,0). Find the linear approximation L(x, y) of the function at (0,0). Find the quadratic approximation Q(x, y) of the function at (0,0). That is, the 2nd-degree Taylor Polynomial. (d) Use a 3D grapher like Maple to verify that the linear approximation is tangent to the surface z = f(x, y) at the given point and that the quadratic approximation is not only tangent to the surface at the given point, but also shares the same concavity as the surface at this point.
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