3. (a) Prove that the function f : R → R, ƒ(x) = 4x² −14x¹+30x-17, is injective. (b) Find the maximum and minimum values attained by f on the interval [—1, 1].

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.5: Systems Of Linear Equations In More Than Two Variables
Problem 44E
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3. (a) Prove that the function f : R → R, ƒ(x) = 4x² −14x¹+30x-17, is injective.
(b) Find the maximum and minimum values attained by f on the interval [—1, 1].
Transcribed Image Text:3. (a) Prove that the function f : R → R, ƒ(x) = 4x² −14x¹+30x-17, is injective. (b) Find the maximum and minimum values attained by f on the interval [—1, 1].
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