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计算:|
1
4
1
2
|+|
1
6
-
1
4
|+|
1
8
-
1
6
|+…+|
1
2008
-
1
2006
|.
人气:287 ℃ 时间:2020-04-02 14:24:12
解答
|
1
4
1
2
|+|
1
6
-
1
4
|+|
1
8
-
1
6
|+…+|
1
2008
-
1
2006
|
=
1
2
-
1
4
+
1
4
-
1
6
+
1
6
-
1
8
+…+
1
2006
-
1
2008

=
1
2
-
1
2008

=
1003
2008
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