问题
解答题
计算 ①2
②(
|
答案
(1)原式=4
+4×3
-123 9
-3
=-2 3 3
;74 3 9
(2)原式=(
)2-23
+1-[(3
)2-(2
)2]3
=3-2
+1-(2-3)3
=3-2
.3
计算 ①2
②(
|
(1)原式=4
+4×3
-123 9
-3
=-2 3 3
;74 3 9
(2)原式=(
)2-23
+1-[(3
)2-(2
)2]3
=3-2
+1-(2-3)3
=3-2
.3