题目内容
(1)化简:(a
b
)×(-3a
b
)÷(
a
b
);
(2)计算:(
)
-(-9.6)0-(
)-
+(
)-2+
+
.
| 2 |
| 3 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 6 |
| 5 |
| 6 |
(2)计算:(
| 9 |
| 4 |
| 1 |
| 2 |
| 27 |
| 8 |
| 2 |
| 3 |
| 3 |
| 2 |
| 6 | (π-4)6 |
| 5 | (π-4)5 |
考点:根式与分数指数幂的互化及其化简运算
专题:函数的性质及应用
分析:根据指数幂的运算法则进行计算即可得到结论.
解答:
解:(1)原式=
a
+
-
b
+
-
=-9a,
(1)原式=(
)2•
-1-(
)3•(-
)+(
)-2+|π-4|+(π-4)=
-1-(
)-2+(
)-2+4-π+π-4=
-1=
.
| (-3) | ||
|
| 2 |
| 3 |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 2 |
| 1 |
| 3 |
| 5 |
| 6 |
(1)原式=(
| 3 |
| 2 |
| 1 |
| 2 |
| 3 |
| 2 |
| 2 |
| 3 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 1 |
| 2 |
点评:本题主要考查指数幂的运算,要求熟练掌握指数幂的运算法则,比较基础.
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