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1973 10 12 10. Define binary operations * on Z by (a) x* y = x...

Question:

1973 10 12 10. Define binary operations * on Z by (a) x* y = x - y (b) ** y = |x - yl sau avtosali (c) x*y = x + y + xy (d) x
1973 10 12 10. Define binary operations * on Z by (a) x* y = x - y (b) ** y = |x - yl sau avtosali (c) x*y = x + y + xy (d) x*y = {(x + y + {[(-1)*+y + 1) + 1). Verify that these are binary operations. Which are commutative Associative?

Answers

10 a a) Defi Define na yi= n-y on a So yon=yon . clearly not yon a) nay & Y*n So binany operation is not commutative uty = n-

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