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haminhon
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
8sinx= [TEX]\frac{\sqrt{3}}{cosx}[/TEX] + [TEX]\frac{1}{sinx}[/TEX]
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