Check sibling questions

Ex 1.5, 3 (xi) - Chapter 1 Class 11 Sets (Term 1)

Last updated at Aug. 27, 2021 by

Ex 1.5, 3 - Chapter 1 Class 11 Sets - Part 12

Ex 1.5, 3 - Chapter 1 Class 11 Sets - Part 13

This video is only available for Teachoo black users

Subscribe Now

This video is only available for Teachoo black users

Subscribe Now

Transcript

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}

Davneet Singh's photo - Teacher, Engineer, Marketer

Made by

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.