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Description: Discrete Help Prove that f : R → R by f(x) = 2x+4. Prove that f is one-to-one and maps surjectivelyonto R.

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Prove that f : R → R by f(x) = 2x+4. Prove that f is one-to-one and maps surjectively onto R.

Elements Of Modern Algebra

8th Edition

ISBN:9781285463230

Author:Gilbert, Linda, Jimmie

Publisher:Gilbert, Linda, Jimmie

Chapter1: Fundamentals

Section1.3: Properties Of Composite Mappings (optional)

Problem 12E: Let f:AB and g:BA. Prove that f is one-to-one and onto if fg is one to-one and gf onto.

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Prove that f : R → R by f(x) = 2x+4. Prove that f is one-to-one and maps surjectively
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