Question 20 - Whether binary commutative/associative or not - Chapter 1 Class 12 Relation and Functions

Last updated at April 16, 2024 by

Example 37 - Show a * b = a + 2b is not associative - Class 12 - Examples

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Question 20 Show that ∗ : R × R → R defined by a ∗ b = a + 2b is not associative. * is associative if (a * b) * c = a * (b * c) Since (a * b) * c ≠ a * (b * c) * is not an associative binary operation

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.