问题
解答题
计算: (1)
(2)(
|
答案
(1)原式=4
-33
+23
---(3分)3
=3
;----------(5分)3
(2)原式=3-2-1+2×
---(3分)2 2
=
.----(5分)2
计算: (1)
(2)(
|
(1)原式=4
-33
+23
---(3分)3
=3
;----------(5分)3
(2)原式=3-2-1+2×
---(3分)2 2
=
.----(5分)2