问题
解答题
计算: (1)
(2)
|
答案
(1)原式=2
+1-102
×5
+5 5
-1=22
+1-10+2
-1=32
-10;2
(2)原式=3
-2
÷1 2
+1 2
-1-12
=3
-1+2
-1-12
=4
-3.2
计算: (1)
(2)
|
(1)原式=2
+1-102
×5
+5 5
-1=22
+1-10+2
-1=32
-10;2
(2)原式=3
-2
÷1 2
+1 2
-1-12
=3
-1+2
-1-12
=4
-3.2