Which equations show that the set of whole numbers is closed under addition?
choose all answe...
Mathematics, 21.08.2019 05:50 bbyggigi94041
Which equations show that the set of whole numbers is closed under addition?
choose all answers that are correct.
a.
0 + (–1) = –1
b.
1 + 1 = 2
c.
2 + 0 = 2
d.
2 + (–1) = 1
Answers: 1
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