so sánh 2 phân số : \(A=\frac{2008^{2009}+2}{2008^{2009}-1};B=\frac{2008^{2009}}{2008^{2009}-3}\)
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=9/a^2009+7/a^2008; B= 8/a^2008+8/a^2009
A=\(\frac{2006}{2007}-\frac{2007}{2008}+\frac{2008}{2009}-\frac{2009}{2010}\)
B=\(\frac{-1}{2006.2007}-\frac{1}{2008.2009}\)
Bài 1: Cho a;b;m \(\in\)N*
So sánh \(\frac{a+m}{b+m}\)và \(\frac{a}{b}\)
Bài 2: So sánh
a/ \(\frac{2009^{2008}+1}{2009^{2009}+1}\)và \(\frac{2009^{2007}+1}{2009^{2008}+1}\)
b/ \(\frac{7^{58}+2}{7^{57}+2}\)và \(\frac{7^{57}+2009}{7^{56}+2009}\)
Bài 2: Cho
A=\(\frac{m^{2008}+1}{m^{2009}+1}\)
B=\(\frac{m^{2009}+1}{m^{2010}+1}\)(m \(\in\)N*)
So sánh A và B
Tìm x:
a) x + (x+1) + (x+2) +...+ (x+2010)= 2029099
b) 2 + 4 + 6 + 8 +...+ 2x = 210
2) So Sánh:
a)\(A=\frac{2009^{2008+1}}{2009^{2009+1}}vàB=\frac{2009^{2009+1}}{2009^{2010+1}}\)
b) C= 1.3.5.....99 với \(D=\frac{51}{2}.\frac{52}{2}.\frac{53}{2}.....\frac{100}{2}\)
So sánh:
\(A=\frac{2006}{2007}+\frac{2007}{2008}+\frac{2008}{2009}+\frac{2009}{2006}\)với 4
thực hiện tính và so sánh A=\(\frac{2008^{2009}+1}{2009^{2009}+1}\)và B=\(\frac{2009^{2009}+1}{2009^{2010}+1}\)