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| 1. |
Let A=R×R and * be a binary operation on A defined by (a,b)*(c,d)=(a+c,b+d). Show that * is commutative and associative. Find the binary element for * on A, if any. |
| Answer» Let ARR and be a binary operation on A defined by Show that is commutative and associative. Find the binary element for on A, if any. | |