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Let a = {1, 2, 3, 4, 5} and b = {2, 4}. what is a ∩ b?
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Let a = {1, 2, 3, 4, 5} and b = {2, 4}. what is a ∩ b?

User Thomas Dignan
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that upside down u looking thing is the " intersection " of sets a and b. That means only the numbers that are in both sets.
answer is : 2,4
User Youssef
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