题目内容
若a=
=
（b≠0），则
=______．
| b |
| 2 |
| c |
| 3 |
| 2c-a |
| 3b |
令a=
=
=t，
∴a=t，b=2t，c=3t，
∴
=
=
，
故答案为
．
| b |
| 2 |
| c |
| 3 |
∴a=t，b=2t，c=3t，
∴
| 2c-a |
| 3b |
| 6t-t |
| 6t |
| 5 |
| 6 |
故答案为
| 5 |
| 6 |
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题目内容
| b |
| 2 |
| c |
| 3 |
| 2c-a |
| 3b |
| b |
| 2 |
| c |
| 3 |
| 2c-a |
| 3b |
| 6t-t |
| 6t |
| 5 |
| 6 |
| 5 |
| 6 |