
### Instruction: help me answer this question If A = {3, 5, 7, 9, 11}, B = {7, 9, 11, 13}, C = {11, 13, 15} and D = {15, 17}; find (i) A ∩ B (ii) B ∩ C (iii) A ∩ C ∩ D (iv) A ∩ C (v) B ∩ D (vi) A ∩ (B ∪ C) (vii) A ∩ D (viii) A ∩ (B ∪ D) (ix) (A ∩ B) ∩ (B ∪ C) (x) (A ∪ D) ∩ (B ∪ C), think step by step
### Assistant:  , The answer is {'i': 'A ∩ B = {7, 9, 11}', 'ii': 'B ∩ C = {11, 13}', 'iii': 'A ∩ C ∩ D = Φ', 'iv': 'A ∩ C = {11}', 'v': 'B ∩ D = Φ', 'vi': 'A ∩ (B ∪ C) = {7, 9, 11}', 'vii': 'A ∩ D = Φ', 'viii': 'A ∩ (B ∪ D) = {7, 9, 11}', 'ix': '(A ∩ B) ∩ (B ∪ C) = {7, 9, 11}', 'x': '(A ∪ D) ∩ (B ∪ C) = {7, 9, 11, 15}'}
