Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
khẳn đinh nào
giúp tớ nhé
tớ mới bị trừ 380
căm ơn trước
a đúng b sai còn c và d mình cũng ko chắc lắm tck mình nhé
ttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt
Theo mình chứ không chắc lắm :
a ) Đ
b ) S ( nằm giữa A và B )
c ) Đ
d ) S
Theo mình thôi chứ cũng chưa đúng hết
Chúc bạn học tốt ! 
Vì N tập hợp tất cả các số tự nhiên và cả hai TH không có TH nào \(\notin\)nên cả hai TH đều đúng.