A = {1, 2, 3} ও B = {2, 3, 4} হলে-
i. AB = (2, 3)
ii. A - B = A
iii. A ∪ B = {1, 2, 3, 4}
নিচের কোনটি সঠিক?

Question

A = {1, 2, 3} ও B = {2, 3, 4} হলে- i. AB = (2, 3) ii. A - B = Aiii. A ∪ B = {1, 2, 3, 4}নিচের কোনটি সঠিক?

Accepted Answer

সঠিক উত্তর: i ও iii। ব্যাখ্যা:

A = {1, 2, 3} ও B = {2, 3, 4} হলে- i. AB = (2, 3) ii. A - B = Aiii. A ∪ B = {1, 2, 3, 4}নিচের কোনটি সঠিক?