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Q.

Which of the following rational numbers does not have a reciprocal?


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a

1

b

-1

c

0

d

7 

answer is C.

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Detailed Solution

It is given to find the rational number which has no reciprocal.
We know that dividing 1 by a number gives the reciprocal of that number.
If we try to find the reciprocal of 0 then we receive an undefinable outcome as we know that 10 is not defined.
So, we can say that 0 does not have a reciprocal.
Therefore, the correct option is 3.
 
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