Toán Lớp 10: a) Cho A = {0;2;4;6}, B = {-2;-1;1;2;} . Tìm A ∩ B , B\A
b) Cho A = (-∞;4), B = (1;7). Tìm A∪B, A\B
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Toán Lớp 10: a) Cho A = {0;2;4;6}, B = {-2;-1;1;2;} . Tìm A ∩ B , B\A
b) Cho A = (-∞;4), B = (1;7). Tìm A∪B, A\B
Comments ( 1 )
B = { -2 ; -1 ; 1 ; 2 }
A nn B = { 2 }
B \ A = { -2 ; -1 ; 1 }
b) A = ( -oo ; 4 )
B = ( 1 ; 7 )
A uu B = ( -oo ; 7 )
A \ B = ( -oo ; 1 ]