$\left\{\begin{matrix}
\sqrt{3+x^{2}}+2\sqrt{x+3}=5+\sqrt{y+3}& \\
\sqrt{3+y^{2}}+2\sqrt{y+3}=5+\sqrt{x+3}&
\end{matrix}\right\.$
hongnhung121296 Chưa có ai trong danh sách bạn bè.
12-09-2013 - 19:31
12-09-2013 - 12:00
$2^{x}=x+1$
07-09-2013 - 10:57
$\left\{\begin{matrix} x^{3}-y^{3}-2=3x-3y^{2}& \\ x^{2}-\sqrt{1-x^{2}}-3\sqrt{2y-y^{2}}+2=0& \end{matrix}\right.$
06-09-2013 - 12:38
06-09-2013 - 12:31
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