(a) Given a surjective function f: [-1, 1] [-1, 1], prove or disprove: f-(f(0}) = {0}.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.4: Logarithmic Functions
Problem 83E
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Question 4.
(a) Given a surjective function f: [-1, 1] → [-1, 1], prove or disprove: f-' (S {0}) = {0}.
(b) Find f(E) and f-'(E) for the function f(x) = log (x2 – 2.x + 1) if E = (0, 3].
Transcribed Image Text:Question 4. (a) Given a surjective function f: [-1, 1] → [-1, 1], prove or disprove: f-' (S {0}) = {0}. (b) Find f(E) and f-'(E) for the function f(x) = log (x2 – 2.x + 1) if E = (0, 3].
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