Consider y = xe^x on the interval [-5, 0]

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 y = xe^x on the interval [-5, 0]
d'y
at the global minimum. What is the significance of this result?
dx?
3. Find
Transcribed Image Text:d'y at the global minimum. What is the significance of this result? dx? 3. Find
Expert Solution
Step 1

In order to find global minima of the function, check the values of the function at end points and also at points where f'x=0.

Thus, the 1st order derivative of the function,

dydx=ddxxex=xddxex+exddxx=x+1ex

 

For local maxima-minima of the function,

dydx=0x+1ex=0x=-1

Thus, the function has local maxima or minima at the point x=-1

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