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If A = {Prime numbers less than 10}, and B = {Positive odd numbers less than 10}, then find (i) A ∩ B (ii) B – A. |
Answer» A = {Prime numbers less than 10} and B = {Positive odd numbers less than 10} ∴ A = {2, 3, 5, 7},B = {1,3,5, 7, 9} ∴ (A ∩ B) = {2, 3, 5, 7} ∩ {1,3, 5,7, 9} = {3,5,7} — (1) and (B – A) = {1, 3, 5, 7, 9} – {2,3, 5,7} = {1,9} —–(2) |
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