# Ex 1.6, 1 - Chapter 1 Class 11 Sets

Last updated at May 29, 2018 by Teachoo

Last updated at May 29, 2018 by Teachoo

Transcript

Ex 1.6, 1 If X and Y are two sets such that n(X) = 17, n(Y) = 23 and n(X Y) = 38, find n(X Y). n(X) = 17, n(Y) = 23, n(X Y) = 38 n(X Y) = ? We know that: n(X Y) = n(X)+ n(Y) n(X Y) 38 = 17 + 23 n(X Y) 38 = 40 n(X Y) n(X Y) = 40 38 n(X Y) = 2

Number of elements in set - 2 sets (Direct)

Chapter 1 Class 11 Sets

Concept wise

- Depiction and Defination
- Depicition of sets - Roster form
- Depicition of sets - Set builder form
- Intervals
- Null Set
- Finite/Infinite
- Equal sets
- Subset
- Power Set
- Universal Set
- Venn Diagram and Union of Set
- Intersection of Sets
- Difference of sets
- Complement of set
- Number of elements in set - 2 sets (Direct)
- Number of elements in set - 2 sets - (Using properties)
- Number of elements in set - 3 sets
- Proof - Using properties of sets
- Proof - where properties of sets cant be applied,using element

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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.