问题
解答题
计算: (1)
(2)
(3)
|
答案
(1)原式=3
-23
=3
;3
(2)原式=
×6
-1 3
×6
+53 2
=
-32
+52 2
=3
;2
(3)原式=
-2+3-5 5
=1.
计算: (1)
(2)
(3)
|
(1)原式=3
-23
=3
;3
(2)原式=
×6
-1 3
×6
+53 2
=
-32
+52 2
=3
;2
(3)原式=
-2+3-5 5
=1.