问题
解答题
计算:
|
答案
原式=
×(1-1 2
+1 3
-1 3
+1 5
-1 5
+…+1 7
-1 2009
+1 2011
-1 2011
)1 2013
=
×(1-1 2
)1 2013
=
×1 2 2012 2013
=
.1006 2013
计算:
|
原式=
×(1-1 2
+1 3
-1 3
+1 5
-1 5
+…+1 7
-1 2009
+1 2011
-1 2011
)1 2013
=
×(1-1 2
)1 2013
=
×1 2 2012 2013
=
.1006 2013