(e) Set x(t) = 2 cos(t), y(t) = 2 sin(t). Draw the parametrized curve (r(t), y(t)) in the ry plane and set F(t) = f(x(t), y(t)). %3D Compute the derivative F'(t) and the variations of the function F(t). What are the maxima, the minima of F(t)? Compare this result with the result in question 4) and explain.

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter12: Algebra Of Matrices
Section12.CR: Review Problem Set
Problem 35CR: Maximize the function fx,y=7x+5y in the region determined by the constraints of Problem 34.
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Please solve the "e" part, thank u
Problem 3
f(x, y) = (3x² + 5y²)e¬z²-y²
(a) Find the definition domain Dof z=f(x,y).Computethe partial deriva-
tives and the Hessian matrix of z = f(x, y) at each point (x, y) E D.
(b) Find the local maxima, the localminima and thesaddle points of the
function z = f(x, y).
(c) Find the maxima and the minima of z=f(x,y) under the condition y=2x.
Find the maxima and the minima of z=f(x,y) under the condition
x² + y? = 4.
(e) Set
x(t):
= 2 cos(t),
y(t) = 2 sin(t).
Draw the parametrized curve (x(t), y(t)) in the xy plane and set
F(t) = f(x(t), y(t)).
%3D
Compute the derivative F'(t) and the variations of the function F(t). What
are the maxima, the minima of F(t)? Compare this result with the result
in question 4) and explain.
Transcribed Image Text:Problem 3 f(x, y) = (3x² + 5y²)e¬z²-y² (a) Find the definition domain Dof z=f(x,y).Computethe partial deriva- tives and the Hessian matrix of z = f(x, y) at each point (x, y) E D. (b) Find the local maxima, the localminima and thesaddle points of the function z = f(x, y). (c) Find the maxima and the minima of z=f(x,y) under the condition y=2x. Find the maxima and the minima of z=f(x,y) under the condition x² + y? = 4. (e) Set x(t): = 2 cos(t), y(t) = 2 sin(t). Draw the parametrized curve (x(t), y(t)) in the xy plane and set F(t) = f(x(t), y(t)). %3D Compute the derivative F'(t) and the variations of the function F(t). What are the maxima, the minima of F(t)? Compare this result with the result in question 4) and explain.
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