theory of computation: show all work please

2. T/F (circle) If AxB = then A= or B = If A = then P(A) = {@}(P is power set) There is a bijection from into itself If|A| = n, then A has one subset of size n-1 If |A| = 5, then |P(A2)] = 32 If A = {a} then A2 has one element TF T F T F T F T F T F