InterviewSolution
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InterviewSolution
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Let `**` be a binary operation on the set Q of rational numbers as follows: (i) `a**b=a-b`(ii) `a**b=a^2+b^2`(iii) `a**b=a+a b`(iv) `a**b=(a-b)^2`(v) `a*b=(a b)/4`(vi) `a**b=a b^2`. Find which of the binary operations are commutative and which are associative. |
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Answer» Correct Answer - (ii),(iv),(v) are commutative (v) is associative (v) has identify element |
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