Last updated at Dec. 16, 2024 by Teachoo
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 (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 (i)
Ex 1.3, 5 (ii) Important
Ex 1.3, 5 (iii) Important
Ex 1.3, 5 (iv)
Ex 1.3, 6 (i)
Ex 1.3, 6 (ii) Important
Ex 1.3, 6 (iii)
Ex 1.3, 6 (iv) Important
Ex 1.3, 7
Ex 1.3, 8 Important
Question 1 Important
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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo