Select the expression that is the multiplicative inverse of n, where n is a non-zero number. a. 1n b. -n c. -1n d. 2n

multiplicative inverse of n

1/n

I am assuming that is A and you don't have the fraction bar

A.

Step-by-step explanation:

The multiplicative inverse refers to the same number but in the opposite position, if the number is a numerator, then its multiplicative opposite is at the denominator. Basically, it consists in turning around the order of the fraction.

The formal definition is that a number is a multiplicative inverse of another if their product gives the neutral multiplicative element which is 1. Let's try:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.