Maurice Tutor

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About Maurice Tutor

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Expertise:
Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 398 Weeks Ago, 2 Days Ago
Questions Answered: 66690
Tutorials Posted: 66688

Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

Experience

  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 01 Jun 2018 My Price 3.00

definitions of union

1.)

a)  Disprove by giving a counterexample that for any sets A,B,C, A∩(B∪C) = (A∩B)∪C.

b) Prove that (B −A)∪(C −A) = (B ∪C)−A. First show that every element on the left side belongs to the right side, then show that every element from the right side belongs to the left side, using definitions of union and difference. 

c) Let g: A → B and f : B → C be one-to-one functions, where A, B, C are arbitrary sets. Prove that their composition f ◦g: A → C is a one-to-one function. 

Answers

Maurice Tutor
(5)
Status NEW Posted 01 Jun 2018 06:06 PM My Price 3.00

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