MCQOPTIONS
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| 1. |
If a * b = a such that a ∗ (b ∗ c) = a ∗ b = a and (a * b) * c = a * b = a then ________ |
| A. | * is associative |
| B. | * is commutative |
| C. | * is closure |
| D. | * is abelian |
| Answer» B. * is commutative | |