Question

please help me for my homework ​

Answer 1

(01). Zero has no reciprocal

(02). The numbers 1 and −1 are their own reciprocals

(03). The reciprocal of -5 is 1/5.

(04). Reciprocal of 1/x, where x ≠ 0 is x.

(05). The product of two rational numbers is always a Rational.

(06). The reciprocal of a positive rational number is always negative.