(4) Let f : [0, 1] → [0, 1] be the function given by f(x) = x². (a) Use induction to prove that for all n € N the function f is strictly increasing. (b) Prove that for all n N the function f is injective. (c) Prove that for all n € N the function f is surjective. (d) What if f-¹? (Find an explicit formula.)

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter3: Functions
Section3.3: Rates Of Change And Behavior Of Graphs
Problem 2SE: If a functionfis increasing on (a,b) and decreasing on (b,c) , then what can be said about the local...
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(4) Let f : [0, 1] → [0, 1] be the function given by f(x) = x².
(a) Use induction to prove that for all n € N the function f is strictly increasing.
(b) Prove that for all n N the function f is injective.
(c) Prove that for all n € N the function f is surjective.
(d) What if f-¹? (Find an explicit formula.)
Transcribed Image Text:(4) Let f : [0, 1] → [0, 1] be the function given by f(x) = x². (a) Use induction to prove that for all n € N the function f is strictly increasing. (b) Prove that for all n N the function f is injective. (c) Prove that for all n € N the function f is surjective. (d) What if f-¹? (Find an explicit formula.)
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