Find all -values such that f(r) = r²eb-ar, where a and b are nonzero real numbers, has a horizontal tangent line. A. r = 0 B. x = 0, x = 1/ C. x = 0, x = D. x = 0, x = 2 a E. x = 0, x = ½ C A B O C OD OE

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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Find all -values such that f(r) = r²eb-ar, where a and b are nonzero real
numbers, has a horizontal tangent line.
A. r = 0
B. x = 0, x = 1/
C. x = 0, x =
D. x = 0, x = 2
a
E. x = 0, x = ½
C
A
B
O C
OD
OE
Transcribed Image Text:Find all -values such that f(r) = r²eb-ar, where a and b are nonzero real numbers, has a horizontal tangent line. A. r = 0 B. x = 0, x = 1/ C. x = 0, x = D. x = 0, x = 2 a E. x = 0, x = ½ C A B O C OD OE
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