题目内容
计算:| 1 |
| 2 |
| 24 |
|
| 2 | ||
|
分析:先把二次根式化简,同类二次根式合并,最后求出结果.
解答:解:原式=
×2
+
+
=
+
+
+2
=2
+2.
| 1 |
| 2 |
| 6 |
| ||
| 3 |
2(
| ||
| 3 |
=
| 6 |
| ||
| 3 |
2
| ||
| 3 |
=2
| 6 |
点评:本题考查了二次根式的混合运算,二次根式的化简是解题的关键.
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| 24 |
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| 2 | ||
|
| 1 |
| 2 |
| 6 |
| ||
| 3 |
2(
| ||
| 3 |
| 6 |
| ||
| 3 |
2
| ||
| 3 |
| 6 |