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Which sets of numbers are closed under subtraction?

Choose all answers that are correct.

A.

odd natural numbers

B.

rational numbers

C.

{0, 1}

D.

{0, 1, 2}

sorry for bugging you i just don't get it

Verified Answer :

olemakpadu

The answer is:

B.
rational numbers

Because if you perform subtraction in a set of rational numbers, the result you get would still be a rational number.

This does not apply to the other sets.

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