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\(\left(1-\frac{1}{97}\right)\times\left(1-\frac{1}{98}\right)\times...\times\left(1-\frac{1}{1000}\right)=\frac{96}{97}\times\frac{97}{98}\times...\times\frac{999}{1000}=\frac{96}{1000}=\frac{12}{125}\)
\(=\frac{96}{97}\cdot\frac{97}{98}\cdot....\cdot\frac{999}{1000}=\frac{96\cdot97\cdot...\cdot999}{97\cdot98\cdot...\cdot1000}=\frac{96\cdot1\cdot...\cdot1}{1\cdot...\cdot1\cdot1000}=\frac{96}{1000}=\frac{12}{125}\)
(1-1/97)*(1-1/98)*...(1-1/1000)
= 96/97*97/98*...*999/1000
= 96/1000 = 49/500
\(\left(1-\frac{1}{97}\right)\left(1-\frac{1}{98}\right)....\left(1-\frac{1}{1000}\right)\)
\(=\frac{96}{97}\times\frac{97}{98}\times....\times\frac{999}{1000}\)
\(=\frac{96\times97\times.....\times999}{97\times98\times....\times1000}\)
\(=\frac{96\times\left(97\times98\times....\times999\right)}{\left(97\times98\times.....\times999\right)\times1000}=\frac{96}{1000}=\frac{12}{125}\)
\(=\frac{96}{97}\cdot\frac{97}{98}\cdot...\cdot\frac{999}{1000}=\frac{96\cdot97\cdot...\cdot999}{97\cdot98\cdot...\cdot1000}=\frac{96\cdot1\cdot....\cdot1}{1\cdot1\cdot....\cdot1\cdot1000}=\frac{96}{1000}=\frac{12}{125}\)
96/97x97/98x....x999/1000
=96x97x...x999x1000/97x98x...x999x1000
=96/1000
=12/125
\(\left(1-\frac{1}{97}\right)\times\left(1-\frac{1}{98}\right)\times...\times\left(1-\frac{1}{1000}\right)\)
\(=\frac{96}{97}\times\frac{97}{98}\times...\times\frac{999}{1000}\)
\(=\frac{96\times97\times...\times999}{97\times98\times...\times1000}\)
\(=\frac{96}{1000}\)
\(=\frac{12}{125}\)
_Chúc bạn học tốt_
\(\left(1-\frac{1}{97}\right)\cdot\left(1-\frac{1}{98}\right)\cdot...\cdot\left(1-\frac{1}{1000}\right)\)
\(=\frac{96}{97}\cdot\frac{97}{98}\cdot...\cdot\frac{99}{1000}\)
\(=\frac{96}{1000}=\frac{12}{125}\)
kết quả là 12/125
ủng hộ mình lên 300 các bạn
bai toan này không đon gian