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Mathematics, 21.12.2019 00:31 iandadude

Which of the following gives an example of a set that is closed under addition?

the sum of an odd number and an odd number

the sum of a multiple of 3 and a multiple of 3

the sum of a prime number and a prime number

none of these are an example of the closure property.

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Which of the following gives an example of a set that is closed under addition?

the sum...
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