Q.

Choose the rational number which is always equal to its reciprocal from the options given below.


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a

1

b

2

c

1 2

d

0 

answer is A.

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Detailed Solution

Here, we are asked to choose such a rational number which is always equal to its reciprocal.
So, we know that 1 is one such number whose reciprocal is 1 itself, i.e., 1 1 =1 .
So, the correct option is (1).
 
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Choose the rational number which is always equal to its reciprocal from the options given below.