Chapter 1 Class 11 Sets
Serial order wise

Question 1 - Number of elements in Set Formula - Chapter 1 Class 11 Sets

Last updated at Dec. 13, 2024 by

Question 1 - If X and Y are two sets n(X) = 17, n(Y) = 23 - Number of elements in Set Formula

Remove Ads

Transcript

Question 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

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

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