Find the value of 4 muliplied by the reciprocal of 4?

2 Answers
Apr 14, 2018

Multiplying any number by its reciprocal gives us 1. Hence 4 muliplied by the reciprocal of 4 too is 1.

Apr 25, 2018

1

Explanation:

1 is known as the identity element for multiplication and division.

It is obtained by multiplying any number by its multiplicative inverse - also known as the reciprocal.

x xx 1/x = x/x = 1" "larr (x !=0)

4/1 xx 1/4 = 4/4 =1

And so it is for any value except 0

sqrt2 xx 1/sqrt2 = sqrt2/sqrt2 =1

3/7 xx 7/3 = 21/21 =1