Tim x biết : \(\left( \frac{1}{2} - 1 \right) \cdot \left( \frac{1}{3} - 1 \right) \cdots \left( \frac{1}{9} - 1 \right) \cdot (2x - 9) = \frac{2}{8} + \frac{3}{28} + \frac{4}{77} + \frac{7}{198}\)

hộ tớ đc khom ạ T-T
----- Nội dung ảnh -----
Tim x biết : \(\left( \frac{1}{2} - 1 \right) \cdot \left( \frac{1}{3} - 1 \right) \cdots \left( \frac{1}{9} - 1 \right) \cdot (2x - 9) = \frac{2}{8} + \frac{3}{28} + \frac{4}{77} + \frac{7}{198}\)