Let u be a differentiable function of r. Use the fact that |u| = Vu2 to prove that u'- u # 0. %3D dr

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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Let u be a differentiable function of x. Use the fact that |u| = Vu2 to prove that
%3D
d.
[lu|] = u';
u 7 0.
dx
Transcribed Image Text:Let u be a differentiable function of x. Use the fact that |u| = Vu2 to prove that %3D d. [lu|] = u'; u 7 0. dx
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