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Vũ Văn Tuần
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0
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0
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0
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![](https://rs.olm.vn/images/medal_ngoi_sao.png)
![](https://rs.olm.vn/images/medal_ngoi_sao.png)
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![](https://rs.olm.vn/images/medal_win_1.png)
0
![](https://rs.olm.vn/images/medal_thong_thai.png)
![](https://rs.olm.vn/images/medal_ngoi_sao.png)
![](https://rs.olm.vn/images/medal_ngoi_sao.png)
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![](https://rs.olm.vn/images/medal_win_1.png)
0
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![](https://rs.olm.vn/images/medal_ngoi_sao.png)
![](https://rs.olm.vn/images/medal_ngoi_sao.png)
![](https://rs.olm.vn/images/medal_ngoi_sao.png)
![](https://rs.olm.vn/images/medal_win_1.png)
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![](https://rs.olm.vn/images/medal_dai_kien_tuong.png)
![](https://rs.olm.vn/images/medal_ngoi_sao.png)
![](https://rs.olm.vn/images/medal_ngoi_sao.png)
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0
2022-12-05 20:01:10
Bạn sai vì (2a+b+c+d)/a=(a+2b+c+d)/2=(a+b+2c+d)/2=(a+b+c+2d)/2=(5a+5b+5c+5d)/a+b+c+d=5
Bạn sai vì (2a+b+c+d)/a=(a+2b+c+d)/2=(a+b+2c+d)/2=(a+b+c+2d)/2=(5a+5b+5c+5d)/a+b+c+d=5