Number of elements formula – For 2 sets

Last updated at April 16, 2024 by

For two sets A & B

n(A) = Number of elements of set A

n(B) = Number of elements of set B

 

n(A ∪ B) = n(A) + n(B) – n(A ∩ B)

 

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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