\(\frac{2009}{2010}=1-\frac{1}{2010}\)
\(\frac{2010}{2011}=1-\frac{1}{2011}\)
\(\frac{1}{2010}\) lớn hơn \(\frac{1}{2011}\)mà trừ càng nhiều thì càng nhỏ.
Vậy \(\frac{2009}{2010}<\frac{2010}{2011}\)
So sanh : U = \(\frac{2009^{2005}+1}{2009^{2010}+1}\)va V = \(\frac{2009^{2010}+2}{2009^{2011}+2}\)
So sánh : \(A=\frac{2008}{2009}+\frac{2009}{2010}+\frac{2010}{2011}vàB=\frac{2008+2009+2010}{2009+2010+2011}\)
So sánh : A=\(\frac{2008}{2009}\)+\(\frac{2009}{2010}\)+\(\frac{2010}{2011}\)và B=\(\frac{2008+2009+2010}{2009+2010+2011}\)
So sánh A và B biết
A=\(\frac{2009}{2010}+\frac{2010}{2011}+\frac{2011}{2012}\)
B=\(\frac{2009+2010+2011}{2010+2011+2012}\)
so sanh
A=2008/2009+2009/2010+2010+2011
B=2008+2009+2010/2009+2010+2011
so sanh A va B
A =\(\frac{2009}{2010}\) +\(\frac{2010}{2011}\) B =\(\frac{2009+2010}{2010+2011}\)
so sanh: A=2009^2009+1/2009^2010+1 và B=2009^2010-2/2009^2011-2
so sánh \(\frac{2009}{2010}+\frac{2010}{2011}+\frac{2010}{2009}và3\)
2008/2009+2009/2010+2010+2011+2011/2008
va 4
so sanh
