4. Show that: f(x) = 2²²₁ x+1 f'(x) = = 4x (1+x²)(1+x)(1-x) (x¹+1)² a. What are the critical points for f(x) on domain à € (-∞, ∞)? b. What is the maximum value of f(x)?

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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4. Show that:
ƒ (x) =
-
2x²
218
x+1
ƒ'(x)
-
4x (1+x²)(1+x)(1-x)
(x²+1) ²
a. What are the critical points for f(x) on domain x = (-∞, ∞)?
b. What is the maximum value of f(x)?
Transcribed Image Text:4. Show that: ƒ (x) = - 2x² 218 x+1 ƒ'(x) - 4x (1+x²)(1+x)(1-x) (x²+1) ² a. What are the critical points for f(x) on domain x = (-∞, ∞)? b. What is the maximum value of f(x)?
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