问题
解答题
计算: (1)
(2)
(3)(
|
答案
(1)原式=3x•
xy1 3
=x
;y
(2)原式=
×183 2
=3
;3
(3)原式=3
+35
-23
+52 5
=8
+35
-23
.2
计算: (1)
(2)
(3)(
|
(1)原式=3x•
xy1 3
=x
;y
(2)原式=
×183 2
=3
;3
(3)原式=3
+35
-23
+52 5
=8
+35
-23
.2