Решите уравнение.
1)[tex] \frac{3}{x^2+2x+1}+ \frac{2}{x^2-1}= \frac{1}{x-1} [/tex]

Решите графическую систему уравнений.
2)[tex] \left \{ {{x^2+y^2=10} \atop {xy=3}} \right. [/tex]
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