Ta có : \(\frac{2010}{2011}=\frac{2011}{2011}-\frac{1}{2011}=1-\frac{1}{2011}\)
\(\frac{2011}{2012}=\frac{2012}{2012}-\frac{1}{2012}=1-\frac{1}{2012}\)
mà \(\frac{1}{2011}>\frac{1}{2012}\)
\(\Rightarrow1-\frac{1}{2011}< 1-\frac{1}{2012}\)
\(\Rightarrow\frac{2010}{2011}< \frac{2011}{2012}\)
so sánh P và Q :
P=2010/2011+2011/2012+2012/2013
Q=2010+2011+2012/2011+2012+2013
A=2011/1.2+2011/3.4+2011/4.5+...+2011/1999.2000
B=2012/1001+2012/1002+2012/1003+...+2012/2000
So sánh A và B
Giúp Mk cho tick lun Thx
\(A=\frac{2011}{\sqrt{2012}}+\frac{2012}{\sqrt{2011}};B=\sqrt{2011}+\sqrt{2012}.\)
So sánh A và B
\(\frac{2012^{2010}+1}{2012^{2011}+1}và\frac{2012^{2011}+1}{2012^{2012}+1}\)so sánh 2 số
So sánh:
A=-9/10^2012 -19/2011 và B=-9/10^2011 -19/10^2012
B1 : So sanh P ,Q biết
P = \(\frac{2010}{2011}+\frac{2011}{2012}+\frac{2012}{2013}\) Và Q = \(\frac{2010+2011+2012}{2011+2012+2013}\)
B2 : Tìm a, b Biết BCNN(a,b) = 420 Và ƯCLN(a,b) = 21. a+ 21 = b
So sánh
M= \(\frac{2010}{2011}+\frac{2011}{2012}+\frac{2012}{2013}\)
N= \(\frac{2010+2011+2012}{2011+2012+2013}\)
So sánh A với B:
a:A=-2012/4025;B=-1999/3997
b:A=2011/1.2+2011/3.4+.....+2011/1999.2000; B=2012/1001+2012+1002+...+2012/2000
So sánh 2 số sau: M=\(\frac{2013^{2012}+2012}{2013^{2011}+1}\)và \(N=\frac{2013^{2011}+2012}{2013^{2010}+1}\)