Question

which of the following is the reciprocal of the reciprocal of a rational number :-
1. - 1
2. 1
3. 0
4. The number itself ​

Answer 1

1 and -1 are the only rational numbers which are their own reciprocals. No other rational number is its own reciprocal. We know that there is no rational number which when multiplied with 0, gives 1. Therefore, rational number 0 has no reciprocal or multiplicative inverse.

Answer 2

Answer:

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