Recall that the power set P(S) of a set S is the collection of all subsets of S .

For A = {1,2,3} and B = {x,y} , calculate the following cardinalities.

• | P(B) |
• | P(B) |
• | A x B^2 |
• | P (A x B) |
• | P (A) x B) |
• | P (P) (A)) |