Question

1. Which statement is not true? A. Rational numbers are closed under division. B. Odd numbers are closed under multiplication. C. Prime numbers are closed under subtraction. D. Integers are closed under addition​

Answer 1

integers are closed under division

Explanation:

Integers are not closed under division.Let us consider two integers i and j.

Then need not necessarily be an integer. For example, 2 and 3 are integers but is not an integer. So the first option , namely, integers are closed under division is not true.

On the other hand, the remaining three options given are correct.