Question

The product of the multiplicative and additive inverse of an integer is always equal to ____.

• A. $-2$
• B. $2$
• C. $-1$
• D. $1$

Answer 1

The correct option is C $-1$

Let the integer be $2.$
Then the multiplicative inverse of $2$ is $\frac{1}{2}$.

The additive inverse of $2$ is $-2$.

The product of the multiplicative and additive inverse $=\frac{1}{2}\times -2=-1$

Hence, the product of the multiplicative and additive inverse of an integer is always equal to $-1.$