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21
Q:

The product of a number and its multiplicative inverse is

A) 1 B) 0
C) -1 D) Infinity

Answer:   A) 1



Explanation:

The mutiplicative inverse of a number is nothing but a reciprocal of a number.

Now, the product of a number and its multiplicative inverse is always equal to 1.

 

For example :

Let the number be 15

Multiplicative inverse of 15 = 1/15

The product of a number and its multiplicative inverse is = 15 x 1/15 = 1.

Subject: Numbers
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