Question

16. Which of the following is not true?
(a) rational numbers are closed under addition. (b) rational numbers are closed under subtraction.
(c) rational numbers are closed under multiplication. (d) rational numbers are closed under division
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Answer 1

Step-by-step explanation:

Rational numbers are not closed under division

eg 2 divided by 0 gives 0

but 0 divided by 2 is unknown

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Answer 2

Answer:

answer d

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