题目内容
化简:(-3| 3 |
| 8 |
| 2 |
| 3 |
| 1 |
| 2 |
| 5 |
| 2 |
| 3 |
分析:利用有理数指数幂的运算法则把原式转化为
+
-
+1=
+10
-10(
+2)+1,由此能求出其最终结果.
| 1 | |||||
|
| 1 | ||
|
| 10 | ||
|
| 4 |
| 9 |
| 5 |
| 5 |
解答:解:(-3
)-
+(0.002)-
-10(
-2)-1+(
-
)0
=
+
-
+1
=
+10
-10(
+2)+1
=-
.
故答案为:-
.
| 3 |
| 8 |
| 2 |
| 3 |
| 1 |
| 2 |
| 5 |
| 2 |
| 3 |
=
| 1 | |||||
|
| 1 | ||
|
| 10 | ||
|
=
| 4 |
| 9 |
| 5 |
| 5 |
=-
| 167 |
| 9 |
故答案为:-
| 167 |
| 9 |
点评:本题考查有理数指数幂的化简和求值,解题时要注意公式的灵活运用,属于基础题.
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