A = {x € N | 12 < x < 16
x = 12 < 13 < 14 < 15 <16
Vậy x = 13 ; 14 ; 15
B = { x € N * | x < 5}
x = x < 5
=> x = 1;2 ; 3 ; 4
k nhabn
A = {x € N | 12 < x < 16
A = {13;14;15}
B = { x € N * | x < 5}
B = {1;2;3;4}
A = {x € N | 12 < x < 16
x = 12 < 13 < 14 < 15 <16
Vậy x = 13 ; 14 ; 15
B = { x € N * | x < 5}
x = x < 5
=> x = 1;2 ; 3 ; 4
A = { 13 ; 14 ; 15 }
B = { 1 ; 2 ; 3 ; 4 }
nha bn