Question

which of the following is the reciprocal of itself
0,1,-1, the number itself​

Answer 1

Answer:

1 and -1 is the answer for your question

Answer 2

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.