Example 11 - Is relation function (i) R = {(2,1), (3,1), (4,2)}





Example 11 Examine each of the following relations given below and state in each case, giving reasons whether it is a function or not? (i) R = {(2, 1), (3, 1), (4, 2)} The first elements are 2, 3 and 4 All these are not repeating. Hence, they have unique images. So, this relation is a function. In function, first element is not repeating

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Davneet Singh

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.