Инфаметр — frac{frac{1}{9^3}cdotfrac{1}{9^6}}{frac{1}{9^{11}}} = frac{frac{1}{9^9}}{frac{1}{9^{11}}}

frac{frac{1}{9^3}cdotfrac{1}{9^6}}{frac{1}{9^{11}}} = frac{frac{1}{9^9}}{frac{1}{9^{11}}}

Инфа — 81%

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