题目内容
计算a÷b÷
÷c×
的结果是______.
| 1 |
| b |
| 1 |
| c |
原式=
×b×
×
=a×
×
=
×
=
.
故答案为:
.
| a |
| b |
| 1 |
| c |
| 1 |
| c |
=a×
| 1 |
| c |
| 1 |
| c |
=
| a |
| c |
| 1 |
| c |
=
| a |
| c2 |
故答案为:
| a |
| c2 |
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计算
÷
的结果等于( )
| a-1 |
| b-1 |
| a-1 |
| b-1 |
| A、1 | ||
B、
| ||
C、
| ||
| D、(a-1)2(b-1)2 |