问题
解答题
计算
|
答案
原式=(
-1 1
)+(1 2
-1 2
)+(1 3
-1 3
)+(1 4
-1 98
)+(1 99
-1 99
)1 100
=
-1 1
+1 2
-1 2
+1 3
-1 3
+1 4
-1 98
+1 99
-1 99 1 100
=1-1 100
=
.99 100
计算
|
原式=(
-1 1
)+(1 2
-1 2
)+(1 3
-1 3
)+(1 4
-1 98
)+(1 99
-1 99
)1 100
=
-1 1
+1 2
-1 2
+1 3
-1 3
+1 4
-1 98
+1 99
-1 99 1 100
=1-1 100
=
.99 100