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2024-03-21 20:01:50
Số học sinh xuất sắc là:
36×25:100=9( học sinh)
Đ/s : 9 học sinh
2024-03-19 20:00:05
Ta có: 2/-9 = -2/9
Vì -2 > -4 nên -2/9 > -4/9
Hãy 2/-9 > -4/9
2024-03-19 19:51:16
Để 11/2n-1 nguyên thì 11 chia hết cho 2n-1 nên 2n-1 thuộc ước của 11
2n-1 thuộc {11;-11}
n thuộc { 6;-5}