问题
解答题
计算: (1)(-1)2011+|-
(2)
|
答案
(1)原式=-1+
-1+2 1 2
=
-2
;3 2
(2)原式=2
-2-22
+2 12 3
=2
-2-22
+22
=0.
计算: (1)(-1)2011+|-
(2)
|
(1)原式=-1+
-1+2 1 2
=
-2
;3 2
(2)原式=2
-2-22
+2 12 3
=2
-2-22
+22
=0.