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Example 11 - Chapter 2 Class 11 Relations and Functions - Part 2

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Example 11 Examine each of the following relations given below and state in each case, giving reasons whether it is a function or not? (ii) R = {(2, 2), (2, 4), (3, 3), (4, 4)} The first elements are 2, 2, 3 and 4 Here 2 is coming twice, i.e. it is repeating Hence, this relation is not a function. In function, first element is not repeating

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.