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| 1. |
Let A=Z×Z and ∗ be a binary operation on A defined by (a,b)∗(c,d)=(ad+bc,bd). Find the identity element for ∗ in the set A. |
| Answer» Let A=Z×Z and ∗ be a binary operation on A defined by (a,b)∗(c,d)=(ad+bc,bd). Find the identity element for ∗ in the set A. | |