Chapter 1: Sets
Chapter 1: Sets
Exercise
Question
Question: 1 (iii)
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Find the union of each of the following pairs of sets:
(iii) A = {x : x is a natural number and multiple of 3}, B = {x : x is a natural number less than 6}
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Answer
1
Find the elements of set A using the set of numbers and the given condition.
A = {3, 6, 9, 12, 15,$...$}
2
Find the elements of set B using the set of numbers and the given condition.
B = {1, 2, 3, 4, 5}
3
Find the union of sets A and B by finding all distinct elements from both sets.
Answer: A $∪$ B = {1, 2, 3, 4, 5, 6, 9, 12, 15,$...$} or {x : x $∈$ N, x = 1, 2, 4, 5 or x is a multiple of 3}