By choosing x, find a maximum of xre-x, if r>2, otherwise the function goes to infinity at x=0.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.1: Inner Product Spaces
Problem 14BEXP
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By choosing x, find a maximum of xre-x, if r>2, otherwise the function goes to infinity at x=0.

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