\(\dfrac{2013}{2012}-\dfrac{2014}{2013}-\dfrac{1}{2012x2013}\)
Không tính cụ thể , hãy sắp xếp các biểu thức sau theo thứ tự giảm dần :
\(\frac{\frac{2010}{2011}}{\frac{2012}{2013}}+\frac{\frac{2011}{2012}}{\frac{2013}{2014}}+\frac{\frac{2012}{2013}}{\frac{2014}{2015}}\)
\(\frac{\frac{2010}{2011}+\frac{2011}{2012}+\frac{2012}{2013}}{\frac{2012}{2013}+\frac{2013}{2014}+\frac{2014}{2015}}\)
\(\frac{\frac{2010+2011+2012}{2011+2012+2013}}{\frac{2012+2013+2014}{2013+2014+2015}}\)
\(\frac{\frac{2010}{2011}+\frac{2011}{2012}+\frac{2012}{2013}}{\frac{2012+2013+2014}{2013+2014+2015}}\)
\(\frac{\frac{2010+2011+2012}{2011+2012+2013}}{\frac{2012}{2013}+\frac{2013}{2014}+\frac{2014}{2015}}\)
So sánh:\(\frac{2010}{2011}+\frac{2011}{2012}+\frac{2012}{2013}+\frac{2013}{2014}\)và\(\frac{2010}{2008}+\frac{2011}{2013}+\frac{2012}{2014}+\frac{2013}{2015}\)
Tính hợp lý (2011/2012+2012/2013+2013/2014+2014/2015)×(1/5-2/3:10/3)
giải giúp mình nhé. A=2012×2014+2015/2014+2013×2013
tính nhanh:
2012*2013+2014
2014*2013+2
Tính nhanh:
2012*2013+2014
2014*2013+2
2013 x 2013 - 2012 x 2014 = ?
cho B = 2012/2013 + 2013/2014 + 2015/2012 . hãy so sánh B với 3
cho B = 2012/2013 + 2013/2014 + 2015/2012 . hãy so sánh B với 3
