1.

(i) Which rational number is its own additive inverse? (ii) Is the difference of two rational numbers a rational number? (iii) Is the additioncommutative on rational numbers? (iv) Is addition associative on rational numbers? (v) Is subtraction commutative on rational numbers? (vi) Is subtraction associative on rational numbers? (vii) What is the negative of a negative rational number?

Answer»


Answer :(i) 0 (ii) YES (iii) Yes (IV) yes (V) No (VI) No (vii) The number itself


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