Problem

Let's say that we have a set \( A = \{1, 2, 3, 4, 5\} \) and a set \( B = \{2, 4, 6, 8, 10\} \). What is the cardinality of the intersection of these two sets?

Solution

Step 1 :The intersection of these two sets would be the set of elements that are common to both sets, which is \( A \cap B = \{2, 4\} \).

Step 2 :The cardinality of a set is the number of elements in the set. So, we just need to count the number of elements in the set \( A \cap B \).

From Solvely APP
Source: https://solvelyapp.com/problems/w9pkRi2sx4/

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