question_answer 11)

                Fill in the blanks: (i) Zero has .......... reciprocal. (ii) The numbers .......... and ......... are their own reciprocals. (iii) The reciprocal of ? 5 is .......... . (iv) Reciprocal of \[\frac{1}{x},\] where \[x\ne 0\] is.......... (v) The product of two rational numbers is always a ........... (vi) The reciprocal of a positive rational number is ...........

Answer:

                (i) Zero has no reciprocal. (ii) The numbers 1 and ?1 are their own reciprocals. (iii) The reciprocal of ? 5 is \[-\frac{1}{5}\]. (iv) Reciprocal of \[\frac{1}{x},\] where \[x\ne 0\] is \[x\]. (v) The product of two rational numbers is always a rational number. (vi) The reciprocal of a positive rational number is positive.