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Write: (i) The rational number that does not have a reciprocal.

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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.

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(i) 0 is a rational number but its reciprocal is not defined. 

(ii) 1 and −1 are the rational numbers that are equal to their reciprocals.

(iii) 0 is the rational number that is equal to its negative.

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