Question

If x + 0 = 0 + x = x, which is rational number, then 0 is called ______

Options

• identity for addition of rational numbers.

• additive inverse of x.

• multiplicative inverse of x.

• reciprocal of x.

Answer 1

If x + 0 = 0 + x = x, which is rational number, then 0 is called identity for addition of rational numbers.

Explanation:

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.