问题
解答题
计算: (1)(3
(2)
|
答案
(1)原式=(12
+23
-63
)÷3 3
=8
÷3
=8;3
(2)原式=3
-2 3 2
-2
+1+|1-
(1+3
)2 3
|2
=3
-2 3 2
-1-2
+1+2
-12
=3 2
-1.2
计算: (1)(3
(2)
|
(1)原式=(12
+23
-63
)÷3 3
=8
÷3
=8;3
(2)原式=3
-2 3 2
-2
+1+|1-
(1+3
)2 3
|2
=3
-2 3 2
-1-2
+1+2
-12
=3 2
-1.2