toan dai so lop 7

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trang2622000

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riverflowsinyou1

(9/11 -0,81)^2004=(9/11 -81/100)^2004
=(9/11)^2004 . 1/10^4000 < 1/10^4000
(9/11-0,81) <0,000...1(4000 chữ số 0)
\Rightarrow dpcm
 
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