Last updated at Aug. 27, 2021 by

Transcript

Ex 1.3, 1 Make correct statements by filling in the symbols ⊂ or ⊄ in the blank spaces: (vii) {x: x is an even natural number} … {x: x is an integer} Natural numbers = 1, 2, 3, 4, 5, 6,… Even natural numbers = 2, 4 ,6,…. So, {x: x is an even natural number} = { 2,4, 6,…..} Integers = ….-3, -2, -1, 0, 1, 2, 3…… So, {x: x is an integer} = {….-3, -2, -1, 0, 1, 2, 3……} Since all even natural numbers are integers ⊂ - is a subset ⊄ - is not a subset A ⊂ B if all elements of A are in B So, {x: x is an even natural number} is a subset of {x: x is an integer} ∴ {x: x is an even natural number} ⊂ {x: x is an integer}

Ex 1.3

Ex 1.3, 1 (i)

Ex 1.3, 1 (ii) Important

Ex 1.3, 1 (iii)

Ex 1.3, 1 (iv) Important

Ex 1.3, 1 (v) Important

Ex 1.3, 1 (vi)

Ex 1.3, 1 (vii) You are here

Ex 1.3, 2 (i) Important

Ex 1.3, 2 (ii)

Ex 1.3, 2 (iii) Important

Ex 1.3, 2 (iv)

Ex 1.3, 2 (v) Important

Ex 1.3, 2 (vi)

Ex 1.3, 3 Important

Ex 1.3, 4 (i)

Ex 1.3, 4 (ii) Important

Ex 1.3, 4 (iii)

Ex 1.3, 4 (iv) Important

Ex 1.3, 5 Important

Ex 1.3, 6 (i)

Ex 1.3, 6 (ii) Important

Ex 1.3, 6 (iii) Important

Ex 1.3, 6 (iv)

Ex 1.3, 7 (i)

Ex 1.3, 7 (ii) Important

Ex 1.3, 7 (iii)

Ex 1.3, 7 (iv) Important

Ex 1.3, 8

Ex 1.3, 9 Important

Chapter 1 Class 11 Sets (Term 1)

Serial order wise

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.