Tìm m, n nguyên dương sao cho :$m+n-\frac{3mn}{m+n}=\frac{2011}{3}$
Edited by lienthanhquyetvn, 04-02-2014 - 21:31.
$m+n-\frac{3mn}{m+n}=\frac{2011}{3}$
Started By lienthanhquyetvn, 04-02-2014 - 21:30
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