问题
解答题
计算：|
|
答案
|
-1 3
|+|1 2
-1 4
|+|1 3
-1 5
|+…+|1 4
-1 10
|1 9
=
-1 2
+1 3
-1 3
+1 4
-1 4
+…+1 5
-1 9 1 10
=
-1 2 1 10
=
．2 5
搜题请搜索小程序“爱下问搜题”
计算：|
|
|
-1 3
|+|1 2
-1 4
|+|1 3
-1 5
|+…+|1 4
-1 10
|1 9
=
-1 2
+1 3
-1 3
+1 4
-1 4
+…+1 5
-1 9 1 10
=
-1 2 1 10
=
．2 5
