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Ex 1.4

Ex 1.4 ,1 (i)
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Ex 1.4, 9 (i) Deleted for CBSE Board 2022 Exams You are here

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Chapter 1 Class 12 Relation and Functions (Term 1)

Serial order wise

Last updated at Aug. 11, 2021 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