问题
解答题
计算: (1)
(2)
(3)|
|
答案
(1)原式=(1+3-5)2
=-
;2
(2)原式=
•6
-1 6
×6 6
=1-6
=-5;
(3)原式=
-3
+2-2
+23
=4-2
计算: (1)
(2)
(3)|
|
(1)原式=(1+3-5)2
=-
;2
(2)原式=
•6
-1 6
×6 6
=1-6
=-5;
(3)原式=
-3
+2-2
+23
=4-2