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  • Utilizator Brainly
2014-10-12T15:37:31+03:00
 \frac{1}{10*11} + \frac{1}{11*12}+....+ \frac{1}{99*100} > 0.08 \\  \\  \frac{1}{10} - \frac{1}{11} + \frac{1}{11} - \frac{1}{12} +.....+ \frac{1}{99} - \frac{1}{100}  > 0.08 \\  \\  \frac{1}{10} - \frac{1}{100}  >0.08 \\  \\  \frac{10}{100} - \frac{1}{100} > 0.08 \\ \\   \frac{9}{100} >0.08 \\  \\  0.09>0.08
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Mersi mult !
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