Ex 1.4, 1 - Chapter 1 Class 11 Sets - Part 3

Ex 1.4, 1 - Chapter 1 Class 11 Sets - Part 4

Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class


Transcript

Ex 1.4, 1 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} Natural number = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,… A = {x: x is a natural number and multiple of 3} Multiple of 3 = 3, 6, 9, 12, 15… A = {3, 6, 9 …} B = {x: x is a natural number less than 6} B = {1, 2, 3, 4, 5} ∪ Union - Combination of two sets A ∪ B = {3, 6, 9 …} ∪ {1, 2, 3, 4, 5} = {1, 2, 4, 5, 3, 6, 9, 12 …} A ∪ B = {x: x is a natural number, x = 1, 2, 4, 5 or a multiple of 3}

Ask a doubt
Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.