Question

Question 11
If x + 0 = 0 + x = x, which is rational number, then 0 is called:
(a) identity for addition of rational numbers.
(b) additive inverse of x.
(c) multiplicative inverse of x.
(d) reciprocal of x.

Answer 1

We know that, the sum of any rational number and zero (0) is the rational number itself Now, x + 0 = 0 + x = x, which is a rational number, then 0 Is called Identity for addition of rational numbers i.e option (a).