Question

____ is the rational number that does not a multiplicative inverse
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Answer 1

Answer:

$\huge\mathcal\color{red}{An}\color{orange}{Sw}\color{gold}{Er!}$

0

No other rational number is its own reciprocal. We know that there is no rational number which when multiplied with 0, gives 1. Therefore, rational number 0 has no reciprocal or multiplicative inverse.