Question

The digit has no reciprocal

Answer 1

The digit which has no reciprocal is ' 1 '

But you can't say it has no reciprocal!!!

Reason :

' 1 ' has a reciprocal , but it is same number itself i.e reciprocal of 1 is
$\frac{1}{1} = 1$


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Some may say '0' has no reciprocal, but reciprocal of 0 is infinity