Help Cardinality Set, HELP MGA LODS ISANG TANONG LANG

[OptiShen]

4. Let A, B, and C be finite sets with |A| = 6, |B| = 8, |C| = 6, |A U B U C| = 11, |A ∩ B| = 3, |A ∩ C| = 2, and |B ∩ C| = 5. Find |A ∩ B ∩ C|.

Salamat

 

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