Question

Write.(i) The rational number that does not have a reciprocal.(ii) The rational numbers that are equal to their reciprocals.(iii) The rational number that is equal to its negative.

Answer 1

(i) If we try to find the reciprocal of `0` then, we get infinity.
As, `1/0 = `Not a number
So, we can say that `0` does not have a reciprocal.
(ii)Only numbers that are equal to their reciprocals are `1` and `-1`.
As, `1/1 = 1` and `1/-1 = -1`
(iii)The rational number that is equal to its negative is `0`.
As, `-(0) = 0`