问题 解答题
计算
(1)
3
×
2
75
;      
(2)
6
-
12
3
;       
(3)2sin60°-cot60°.
答案

(1)原式=

2
75
=
2
25
=
2
5

(2)原式=

6
3
-
12
3
=
6
3
-
12
3
=
2
-2;

(3)原式=2×

3
2
-
3
3
=
3
-
3
3
=
2
3
3

判断题
填空题