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Ex 2.2, 5 - Let A = {1, 2, 3, 4, 6}. Let R = {(a, b) on A

Ex 2.2, 5 - Chapter 2 Class 11 Relations and Functions - Part 2
Ex 2.2, 5 - Chapter 2 Class 11 Relations and Functions - Part 3

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Ex 2.2, 5 - Chapter 2 Class 11 Relations and Functions - Part 4

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Ex 2.2, 5 - Chapter 2 Class 11 Relations and Functions - Part 5

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Transcript

Ex 2.2, 5 Let A = {1, 2, 3, 4, 6}. Let R be the relation on A defined by {(a, b): a, b ∈ A, b is exactly divisible by a}. (i) Write R in roster form A = {1, 2, 3, 4, 6} a , b ∈ A Also, b is exactly divisible by a A = {1, 2, 3, 4, 6} R = {(1, 1), (1, 2), (1, 3), (1, 4), (1, 6), (2, 2), (2, 4), (2, 6), (3, 3), (3, 6), (4, 4), (6, 6)} Ex 2.2, 5 Let A = {1, 2, 3, 4, 6}. Let R be the relation on A defined by {(a, b): a, b ∈ A, b is exactly divisible by a}. (ii) Find the domain of R R = {(1, 1), (1, 2), (1, 3), (1, 4), (1, 6), (2, 2), (2, 4), (2, 6), (3, 3), (3, 6), (4, 4), (6, 6)} Domain of R = Set of first elements of relation = {1, 2, 3, 4, 6} Ex 2.2, 5 Let A = {1, 2, 3, 4, 6}. Let R be the relation on A defined by {(a, b): a, b ∈ A, b is exactly divisible by a}. (iii) Find the range of R R = {(1, 1), (1, 2), (1, 3), (1, 4), (1, 6), (2, 2), (2, 4), (2, 6), (3, 3), (3, 6), (4, 4), (6, 6)} Range of R = Set of second elements of relation = {1, 2, 3, 4, 6}

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.