Question

The multiplication inverse of the multiplicative inverse of a non$-$zero number is $......$

• A. the multiplicative inverse.
• B. the number itself.
• C. the additive inverse.
• D. the negative of the number.

Answer 1

Answer: (B)

the number itself.

For any non-zero number $a$, its multiplication inverse is $\frac{1}{a}$. And then the multiplicative inverse of $\frac{1}{a}$ is $a$.
Hence, multiplicative inverse of the multiplicative inverse of a number is the number itself.