১.
U = {1, 3, 5, 7, 9, 11}, E = {1, 5, 9} এবং F = {3, 7, 11} হলে, E∩F= ?
সঠিক উত্তর: ক
Φ
উত্তর
সঠিক উত্তর: ক
Φ
ব্যাখ্যা
U = {1, 3, 5, 7, 9, 11},
E = {1, 5, 9} এবং
F = {3, 7, 11}
E ∩ F
= {1, 5, 9} ∩ {3, 7, 11}
= Φ
E = {1, 5, 9} এবং
F = {3, 7, 11}
E ∩ F
= {1, 5, 9} ∩ {3, 7, 11}
= Φ