Ex 1.4, 9 (i) - Chapter 1 Class 12 Relation and Functions
Last updated at April 16, 2024 by Teachoo
Binary Operations
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Binary Operations
Last updated at April 16, 2024 by Teachoo
Ex 1.4, 9 Let * be a binary operation on the set Q of rational numbers as follows. Find which are associative and which are commutative : • a * b = a − b Check commutative * is commutative if a * b = b * a Since a * b ≠ b * a * is not commutative Check associative * is associative if (a * b) * c = a * (b * c) Since (a * b) * c ≠ a * (b * c) * is not an associative binary operation