Question

Which of the following rational numbers is equal to its reciprocal ? *

(a) 2

(b) -1

(c) 0

(d) 1 / 2

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Answer 1

Answer:

Solution: 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.

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Answer 2

Step-by-step explanation:

b) -1 is the right answer.