MCQ
If $x + 0 = 0 + x = x,$ which is rational number, then $0$ is called:
- ✓Identity for addition of rational numbers.
- BAdditive inverse of $x.$
- CMultiplicative inverse of $x.$
- DReciprocal of $x.$
✓
Answer
Correct option: A.
Identity for addition of rational numbers.
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.
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