Решите уравнение
1)[tex] \frac{1}{5-4lgx} + \frac{4}{1+lgx} =3[/tex]
2)[tex]log _{3} x+log_{9}x+log_{27}x=5,5[/tex]
1)[tex] \frac{1}{5-4lgx} + \frac{4}{1+lgx} =3[/tex]
2)[tex]log _{3} x+log_{9}x+log_{27}x=5,5[/tex]
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