问题
解答题
2011÷2011
|
答案
2011÷2011
,2011 2012
=2011÷
,2012×2011+2011 2012
=2011×
,2012 2011×(2012+1)
=
.2012 2013
2011÷2011
|
2011÷2011
,2011 2012
=2011÷
,2012×2011+2011 2012
=2011×
,2012 2011×(2012+1)
=
.2012 2013