If A a b c d and B c d e f g then n A U B n a b c d e f g 7

Last updated: 6/19/2023

If A a b c d and B c d e f g then n A U B n a b c d e f g 7 n A 4 n B 5 and n An B n c d 2 Since 7 4 5 2 this suggests that n AUB n A n B n An B Use Venn diagrams to justify thi arbitrary finite sets A and B OA OB O C O D n AUB n AUB n AUB n AUB A A B A A B O O B n AUB B n ANB n ANB n ANB CALE