Question

Write.
@ The rational number that does not have a reciprocal.
m) The rational numbers that are equal to their reciprocals
(iii) The rational number that is equal to its negative.
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Answer 1

Answer:

1. 0 (zero) is the rational number which does not have a reciprocal. Solution: 1 and – 1 are the rational numbers which are equal to their reciprocals.
2.  1 and –1are the rational numbers that are equal to their reciprocals.
3.  0 (zero) is the rational number which is equal to its negative. Let x be the rational number

x=−x

=>x+x=0

=>2x=0

=>x=0