题目内容
计算:(-
)÷(
)2×
÷(-2a2b)3.
| 1 |
| 2a |
| 2a |
| b |
| 3b2 |
| a2 |
(-
)÷(
)2×
÷(-2a2b)3
=(-
)×
×
÷(-8a6b3)
=
×
×
×
=
.
| 1 |
| 2a |
| 2a |
| b |
| 3b2 |
| a2 |
=(-
| 1 |
| 2a |
| b2 |
| 4a2 |
| 3b2 |
| a2 |
=
| 1 |
| 2a |
| b2 |
| 4a2 |
| 3b2 |
| a2 |
| 1 |
| 8a6b3 |
=
| 3b |
| 64a11 |
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