Question 1 - Examples - Chapter 1 Class 11 Sets
Last updated at Dec. 13, 2024 by Teachoo
Last updated at Dec. 13, 2024 by Teachoo
Question 1 If X and Y are two sets such that X ∪ Y has 50 elements, X has 28 elements & Y has 32 elements, how many elements does X ∩ Y have ? n (X ∪ Y) = 50, n (X) = 28, n (Y) = 32, n (X ∩ Y) = ? By using the formula n ( X ∪ Y ) = n ( X ) + n ( Y ) – n ( X ∩ Y ), 50 = 28 + 32 – n ( X ∪ Y ) n ( X ∪ Y ) = 60 – 50 n ( X ∪ Y ) = 10
Examples
Example 2 Important
Example 3
Example 4
Example 5 Important
Example 6 (i)
Example 6 (ii) Important
Example 6 (iii)
Example 6 (iv)
Example 6 (v)
Example 7 Important
Example 8 (i)
Example 8 (ii)
Example 9 Important
Example 10
Example 11 Important
Example 12
Example 13 Important
Example 14
Example 15
Example 16
Example 17
Example 18 Important
Example 19
Example 20
Example 21
Example 22 Important
Example 23
Example 24 Important
Example 25
Question 1 You are here
Question 2 Important
Question 3 Important
Question 4
Question 5 Important
Question 6
Question 7 Important
Question 8 Important
Question 9 Important
About the Author
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