
### Instruction: help me answer this question Let A = {1, 2} and B = {3, 4}. Write A × B. How many subsets will A × B have? List them., think step by step
### Assistant:  , The answer is A × B = {(1, 3), (1, 4), (2, 3), (2, 4)} The set A × B has 2^4 = 16 subsets. These are: {Φ}, {(1, 3)}, {(1, 4)}, {(2, 3)}, {(2, 4)}, {(1, 3), (1, 4)}, {(1, 3),(2,3)},{(1,3), (2,4)},{(1,4), (2,3)},{(1,4), (2,4)},{(2,3), (1,4)},{(2,3), (2,4)},{(1,3), (1,4), (2,3)},{(1,3), (1,4), (2,4)},{(1,4), (2,3), (2,4)},{(1,3), (2,3), (1,4), (2,4)}
