题目内容
计算:(1)| 9 |
| 12 |
| 2 |
| 3 |
| ||
|
(5)
| 1 | ||
|
| 8 |
| 2 |
| 3 |
| 6 |
| 3 |
| ||||
|
分析:根据开平方的法则及二次根式的乘除法则直接运算即可.
解答:解:(1)
=3;
(2)
=2
;
(3)
×
=
;
(4)
=
;
(5)
=
;
(6)
-2
=0;
(7)
(
-
)=3
-3;
(8)
=
-1.
故答案为:3;2
;
;
;
;0;3
-3;
-1.
| 9 |
(2)
| 12 |
| 3 |
(3)
| 2 |
| 3 |
| 6 |
(4)
| ||
|
| 5 |
(5)
| 1 | ||
|
| ||
| 2 |
(6)
| 8 |
| 2 |
(7)
| 3 |
| 6 |
| 3 |
| 2 |
(8)
| ||||
|
| 3 |
故答案为:3;2
| 3 |
| 6 |
| 5 |
| ||
| 2 |
| 2 |
| 3 |
点评:本题考查了二次根式的乘除法,属于基础题,难度不大,注意细心运算.
练习册系列答案
相关题目