591. Решите неравенство:
а)
[tex] \frac{x + 1}{x - 1} < \frac{x - 1}{x} - 2[/tex]
б)
[tex] \frac{1}{x + 1} + \frac{2}{x + 3} - \frac{3}{x + 2 } < 0[/tex]

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