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Determine whether a**b = a+ b-ab "on" R-{1}operations as defined by * are binary operations on the sets specified in each case. Give reasons if it is not a binary operation. |
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Answer» Solution :For all `a,b in R -{1}` ` a**b =a+b -AB in R -{1}` `:. **` is a BINARY OPERATION on `R -{1}` |
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