If P= {8,4} and Q= {3,5}, what is n(P x Q)?Enter your answer in the box below
Question
If P= {8,4} and Q= {3,5}, what is n(P x Q)?Enter your answer in the box below
Solution
The notation n(P x Q) refers to the number of elements in the Cartesian product of sets P and Q. The Cartesian product of two sets is the set of all ordered pairs (p, q) where p is in P and q is in Q.
Set P has 2 elements: {8, 4} Set Q has 2 elements: {3, 5}
So, the Cartesian product P x Q will have 2 * 2 = 4 elements.
Therefore, n(P x Q) = 4.
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