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phongtuyetduong
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
Giải phương trình:
[TEX]C_x^{x-1} + C_x^{x-2} + C_x^{x-3} +...+ C_x^{x-16} =1023[/TEX]
[TEX]C_x^{x-1} + C_x^{x-2} + C_x^{x-3} +...+ C_x^{x-16} =1023[/TEX]
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