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Ex 1.5, 3 - Chapter 1 Class 11 Sets - Part 3

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Ex 1.5, 3 Taking the set of natural numbers as the universal set, write down the complements of the following sets: (iii) {x: x is a positive multiple of 3} U = {1, 2, 3, 4, 5…..} {x: x is a positive multiple of 3}´ = {x: x ∈ N and x is not a multiple of 3} Positive multiple of 3 Eg: 3, 6, 9, 12,.. Not a positive multiple of 3 Eg: 1, 2, 4, 5, 7, 8, 10, 11, 13,…

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