Pls help someone pls pls help I have exam tomorrow

TheGrandWazoo asked Jun 15, 2022

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26 votes

TheGrandWazoo asked Jun 15, 2022

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15 votes

Answer:

$n(A \cup \: B) = n(A) + n(B) - n(A \cap \: B)\\ = 9 + 11 - 5 = 15 \\$

Mosg answered Jun 21, 2022

by Mosg

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