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phangmotphat
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
Cho mạch điện như hình vẽ:
Tính [TEX]I_1;I_2;I_3[/TEX] qua [TEX]R_1; R_2; R_3.[/TEX]
![0.932345001256646788.bmp](http://c.uploadanh.com/upload/1/447/0.932345001256646788.bmp)
Tính [TEX]I_1;I_2;I_3[/TEX] qua [TEX]R_1; R_2; R_3.[/TEX]
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