题目内容
计算:| 2 |
| 8 |
| 6 |
| 3 |
分析:根据
•
=
,
÷
=
运算即可.
| a |
| b |
| ab |
| a |
| b |
|
解答:解:
×
=
=4;
÷
=
.
故答案为:4,
.
| 2 |
| 8 |
| 16 |
| 6 |
| 3 |
| 2 |
故答案为:4,
| 2 |
点评:本题考查二次根式的乘除运算,难度不大,注意掌握
•
=
,
÷
=
.
| a |
| b |
| ab |
| a |
| b |
|
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