问题
解答题
认真思考,求下列式子的值. |
|
答案
原式=
-1 2008
+1 2009
-1 2009
+1 2010
-1 2010 1 2011
=
-1 2008 1 2011
=
.3 4038088
认真思考,求下列式子的值. |
|
原式=
-1 2008
+1 2009
-1 2009
+1 2010
-1 2010 1 2011
=
-1 2008 1 2011
=
.3 4038088