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Answer to Question #62050 in Abstract Algebra for ABHIJIT MOHANTY
Question #62050
Which of the following are binary operations. Justify your answer.
i) The operation · defined on Q by a·b = a(b− 1).
ii) The operation · defined on [0,π] by x·y = cosxy.
Also, for those operations which are binary operations, check whether they are
associative and commutative.
i) The operation · defined on Q by a·b = a(b− 1).
ii) The operation · defined on [0,π] by x·y = cosxy.
Also, for those operations which are binary operations, check whether they are
associative and commutative.
Expert's answer
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