Learn about Sets on our Youtube Channel - https://you.tube/Chapter-1-Class-11-Sets


  1. Chapter 1 Class 11 Sets
  2. Serial order wise


Example 21 Let U be universal set of all the students of Class XI of a coeducational school and A be the set of all girls in Class XI. Find A′. In a coeducational school, there can be only boys and girls in a school. A is the set of all girls, A′ = Set of all Students – Set of all girls A′ = Set of all boys in class XI.

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.