\(\frac{x-1}{2010}+\frac{x-2}{2009}+.......+\frac{x-2010}{1}=2010cacbangiupminhhen\)
\(\frac{x-1}{2011}+\frac{x-2}{2010}-\frac{x-3}{2009}=\frac{x-4}{2008}\)tìm x
\(\frac{x+1}{2009}+\frac{x+1}{2010}+\frac{x+1}{2011}=\frac{x+1}{2012}+\frac{x+1}{2013}+\frac{x+1}{2014}\)
tìm x biết:
\(\frac{x-1}{2011}+\frac{x-2}{2010}+\frac{x-3}{2009}=\frac{x-4}{2008}\)
\(\frac{x-1}{2011}+\frac{x-2}{2010}+\frac{x-3}{2009}=\)\(\frac{x-4}{2008}\)
Cho \(A=\frac{2010}{2009^2+1}+\frac{2010}{2009^2+2}+...+\frac{2010}{2009^2+2009}\)
CM: A không phải số nguyên dương
Tìm x biết :
\(\frac{x-1}{2012}+\frac{x-2}{2011}+\frac{x-3}{2010}+\frac{x-4}{2009}+\frac{x-2021}{2}=0\)
\(A=\frac{2010}{2009^2+1}+\frac{2010}{2009^2+2}+...+\frac{2010}{2009^2+2009}\)
CMR: A không phải là số nguyên dương?
Tìm x biết : \(\frac{2-x}{2008}-1=\frac{1-x}{2009}-\frac{x}{2010}\)