题目内容
已知
=
=
,则
=______.
| 2 |
| a |
| 3 |
| b |
| 4 |
| c |
| a+b-c |
| a-b+c |
设a=2k,b=3k,c=4k,
则
=
=
,
故填
.
则
| a+b-c |
| a-b+c |
| 2k+3k-4k |
| 2k-3k+4k |
| 1 |
| 3 |
故填
| 1 |
| 3 |
练习册系列答案
相关题目
题目内容
| 2 |
| a |
| 3 |
| b |
| 4 |
| c |
| a+b-c |
| a-b+c |
| a+b-c |
| a-b+c |
| 2k+3k-4k |
| 2k-3k+4k |
| 1 |
| 3 |
| 1 |
| 3 |