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Mathematics, 22.08.2019 14:00 nculberson6

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is the set of multiples of 4 closed under addition? explain why or provide a counterexample if not. a. yes, because the sum of any two multiples of 4 is also a multiple of 4. b. yes, because the sum of any two multiples of 4 is also a multiple of 8. c. no, and a counterexample is –4 + (–8) = –12. d. no, and a counterexample is 26 + 16 = 42.

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