Q10.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.

Answers (1)

(i) Zero(0).      We know that reciprocal of A is \frac{1}{A}. So for 0, its reciprocal is not defined.

(ii) 1 and -1 .                                                    (Since  \frac{1}{1} = 1  and   \frac{1}{-1} = -1  )

(iii) Zero,0.                                                             (as -0=0)

 

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