Q. 25.0( 1 Vote )
State the reason
Here * is a binary operator defined on the set of integers Z.
To prove * is not commutative we have to give example showing that if we replace the terms with each other result are not same.
So take –1,3 є Z
Now –1 * 3 = –27 and 3 * –1 = –3
Therefore –1 * 3 ≠ 3 * –1
So * is not commutative.
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