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Mathematics, 07.09.2021 14:00 zeesharpe05
Các câu sau đây, câu nào là mệnh đề, câu nào không phải là mệnh đề ? Nếu là mệnh đề hãy cho
biết mệnh đề đó đúng hay sai.
a) Số có lớn hơn 3 hay không ?
b) Hai tam giác bằng nhau khi và chỉ khi chúng có diện tích bằng nhau.
c) Một tứ giác là hình thoi khi và chỉ khi nó có hai đường chéo vuông góc với nhau.
d) Phương trình 2 x x 2015 2016 0 vô nghiệm.
![ansver](/tpl/images/cats/User.png)
Answers: 2
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Các câu sau đây, câu nào là mệnh đề, câu nào không phải là mệnh đề ? Nếu là mệnh đề hãy cho
biết m...
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