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{(10^1997+1)/(10^1998+1)}/ {(10^1998+1)/(10^1999+1)} ={(10^1997+1)*(10^1999+1)/(10^1998+1)^2 =(10^1997*10^1999+10^1997+10^1999+1)/((10^1998)^2+2*10^1998*1+1)=(10^(1997+1999)+10^(1998-1)+10^(1998+1)+1)/(10^3996+2*10^1998+1)=(10^3996+(0.10*10^1998)+(10^1998)*10 +1)/10^3996+2*10*1998+1)=(10^3996+(0,10+10)*10^1998+1)/(10^3996+2*10*1998+1)=(10^3996+10.10*10^1998+1)/(10^3996+2*10*1998+1) =>(10^3996+10.10*10*1998+1)>(10^3996+2*10*1998+1) (10.10>2) =>(10^1997+1)/(10^1998+1) > (10^1998+1)/(10^1999+1)
{(10^1997+1)/(10^1998+1)}/ {(10^1998+1)/(10^1999+1)} =
ΑπάντησηΔιαγραφή{(10^1997+1)*(10^1999+1)/(10^1998+1)^2 =
(10^1997*10^1999+10^1997+10^1999+1)/((10^1998)^2+2*10^1998*1+1)=
(10^(1997+1999)+10^(1998-1)+10^(1998+1)+1)/(10^3996+2*10^1998+1)=
(10^3996+(0.10*10^1998)+(10^1998)*10 +1)/10^3996+2*10*1998+1)=
(10^3996+(0,10+10)*10^1998+1)/(10^3996+2*10*1998+1)=
(10^3996+10.10*10^1998+1)/(10^3996+2*10*1998+1) =>
(10^3996+10.10*10*1998+1)>(10^3996+2*10*1998+1) (10.10>2) =>
(10^1997+1)/(10^1998+1) > (10^1998+1)/(10^1999+1)