N
nhock_xinh_buon


Giải phương trình :
[TEX]\frac{2-x}{2001}-1= \frac{1-x}{2002}-\frac{x}{2003}[/TEX]
[TEX]\frac{2-x}{2001}-1= \frac{1-x}{2002}-\frac{x}{2003}[/TEX]
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