Example 15 - Chapter 1 Class 12 Relation and Functions

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Example 15 Let f : {2, 3, 4, 5} → {3, 4, 5, 9} and g : {3, 4, 5, 9} → {7, 11, 15} be functions defined as f (2) = 3, f (3) = 4, f (4) = f (5) = 5 and g (3) = g (4) = 7 and g (5) = g (9) = 11. Find gof. f: {2, 3, 4,5} → {3,4,5,9} f(2) = 3, f(3) = 4, f(4) = 4 & f(5) = 5 Drawing diagram g: {3,4,5,9} → {7,11,15} g(3) = 7,g(4) = 7 ,g(5) = 11 ,g(9) = 11 Drawing diagram

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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 and Computer Science at Teachoo