Check sibling questions

Ex 1.4, 5 - Let a *' b = HCF of a and b. Is *' same as * - Whether binary commutative/associative or not

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Ex 1.4, 5 Let* be the binary operation on the set {1, 2, 3, 4, 5} defined by a * b = H.C.F. of a and b. Is the operation * same as the operation * defined in Exercise 4 above? Justify your answer. * is defined on set {1, 2, 3, 4, 5} and a * b = H.C.F of a and b. The operation table is: Note that the operation tables for * and * are the same. Thus, the operation * is same as the operation*.

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.