问题
解答题
计算下列各题: (1)
(2)
|
答案
(1)原式=2+
-10 5
×61 3
=2+
-2 2
=2;
(2)原式=
+1
+12
+1
+3 2
+…+1
+4 3 1
+100 99
=
-1+2
-3
+2
-4
+…+3
-100 99
=
-1100
=10-1
=9.
计算下列各题: (1)
(2)
|
(1)原式=2+
-10 5
×61 3
=2+
-2 2
=2;
(2)原式=
+1
+12
+1
+3 2
+…+1
+4 3 1
+100 99
=
-1+2
-3
+2
-4
+…+3
-100 99
=
-1100
=10-1
=9.