The multiplicative identity of rational numbers is?
- 1
- 2
- 3
- None of these
Explanation
The multiplicative identity is the number which, when multiplied by any rational number, leaves it unchanged.
For rational numbers, that number is 1 because a × 1 = a.
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- 10
- 15
- 20
- None of these
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- 18
- 17
- 16
- None of these