(Solved): Let \( A=\{1,2,3,4\} \), let \( B=\{a, b, c, d\} \), and let \( P(A) \) denote the set of all subse ...
Let \( A=\{1,2,3,4\} \), let \( B=\{a, b, c, d\} \), and let \( P(A) \) denote the set of all subsets of \( A \). Determine the number of elements in the Cartesian product \( B \times P(A) \).