Last updated at Dec. 16, 2024 by Teachoo
Ex 1.5, 3 Taking the set of natural numbers as the universal set, write down the complements of the following sets: (xi) {x: x ∈ N and 2x + 1 > 10} U = {1, 2, 3, 4, 5…..} 2x + 1 > 10 2x > 10 – 1 2x > 9 x > 9/2 x > 4.5 {x: x ∈ N and 2x + 1 > 10} = {x: x ∈ N and x > 4.5} {x: x ∈ N and 2x + 1 > 10}’ = {x: x ∈ N and x > 4.5}’ = {x: x ∈ N and x ≤ 4.5}
Ex 1.5
Ex 1.5, 1 (ii)
Ex 1.5, 1 (iii) Important
Ex 1.5, 1 (iv)
Ex 1.5, 1 (v)
Ex 1.5, 1 (vi) Important
Ex 1.5, 2
Ex 1.5, 3 (i)
Ex 1.5, 3 (ii)
Ex 1.5, 3 (iii)
Ex 1.5, 3 (iv) Important
Ex 1.5, 3 (v)
Ex 1.5, 3 (vi)
Ex 1.5, 3 (vii)
Ex 1.5, 3 (viii)
Ex 1.5, 3 (ix) Important
Ex 1.5, 3 (x)
Ex 1.5, 3 (xi) You are here
Ex 1.5, 4 Important
Ex 1.5, 5 Important
Ex 1.5, 6
Ex 1.5, 7 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