Question

The product of a rational number and its multiplicative Inverse = ___

• A. 0
• B. 1
• C. Multiplicative Identity
• D. Inverse

Answer 1

Answer: (B), (C)

The correct options are
B

1

C

Multiplicative Identity

Let's take a rational number $\frac{-4}{9}$

It's Reciprocal = $\frac{9}{-4}$

$\frac{9}{-4}\times \frac{-4}{9}$ = 1 which is an identity

This is true for all rational numbers.

$\therefore$ The product of a rational number and its multiplicative Inverse = 1 or Multiplicative Identity