题目内容
8
-3
-6
+
=
．
| 3 |
| 12 |
|
| 3 | 3
| ||
| 3 |
| 3 |
分析：利用指数幂的运算法则即可得出．
解答：解：原式=8
-6
-6×
+
=3
=
．
故答案为
．
| 3 |
| 3 |
| ||
| 3 |
| 3 | 3
| ||
=3
| 1 |
| 2 |
| 3 |
故答案为
| 3 |
点评：熟练掌握指数幂的运算法则是解题的关键．
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| 3 |
| 12 |
|
| 3 | 3
| ||
| 3 |
| 3 |
| 3 |
| 3 |
| ||
| 3 |
| 3 | 3
| ||
| 1 |
| 2 |
| 3 |
| 3 |