Q4 of 169 Page 9

Which of the following is not true?

Any rational number “a” is not defined in the condition when ,thus rational numbers are not closed under division.


(a) True because the addition of two rational number is a rational number.


(b) True because subtraction of two rational number is a rational number.


(c) True because multiplication of two rational number is a rational number.

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is an example to show that

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