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What is the c...

Question

What is the cardinality of the set P $\cap$ Q?
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Solution

From the venn diagram, we have

P = {2, 3, 5, 7, 19}

Q = {7, 13, 17, 19}

Intersection of two sets contains members which belong to both the sets.

P $\cap$ Q = {7, 19}

Therefore, the cardinality of P $\cap$ Q is 2

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