Ta có : \(A=\frac{1946}{1986};B=\frac{1968}{2008}\)
\(=>1-A=1-\frac{1946}{1986}=\frac{1986}{1986}-\frac{1946}{1986}=\frac{40}{1986}\)
\(=>1-B=1-\frac{1968}{2008}=\frac{2008}{2008}-\frac{1968}{2008}=\frac{40}{2008}\)
Vì \(\frac{40}{1986}>\frac{40}{2008}=>1-\frac{1946}{1986}>1-\frac{1968}{2008}\)
\(=>1-A>1-B\)
Từ đó suy ra : A < B
so sanh -1946/1986 va -1968/2008
so sanh 1946/1986 va 1968/2008
so sanh
A=\(\frac{1946}{1986}\) va B=\(\frac{1968}{2008}\)
So sánh A = 1946/ 1986 và B = 1968/ 2008
So sánh : A = \(\frac{1946}{1986}\)với B = \(\frac{1968}{2008}\)
so sánh : \(A=\frac{1946}{1986}\)và \(B=\frac{1968}{2008}\)
So sánh : \(A=\frac{1946}{1986}\) và \(B=\frac{1968}{2008}\)
So sanh A va B biet : A=2006/2007+2007/2008+2008/2009 va B=(2006+2007+2008)/(2007+2008+2009)
so sanh A va B biet:
A=2008^2008+1/2009^2009+1
B=2008^2007+1/2008^2008+1
