题目内容
在△ABC中，已知P是BC边上一点，
=2
，
=λ
+
，则λ=______．
| BP |
| PC |
| AP |
| AB |
| 2 |
| 3 |
| AC |
| AP |
| AB |
| 2 |
| 3 |
| AC |
=
| AB |
| BP |
=
| AB |
| 2 |
| 3 |
| BC |
=
| AB |
| 2 |
| 3 |
| AC |
| AB |
=
| 1 |
| 3 |
| AB |
| 2 |
| 3 |
| AC |
∴λ=
| 1 |
| 3 |
故答案为：
| 1 |
| 3 |
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=
=
=
=
∴λ=
故答案为：
题目内容
| BP |
| PC |
| AP |
| AB |
| 2 |
| 3 |
| AC |
| AP |
| AB |
| 2 |
| 3 |
| AC |
| AB |
| BP |
| AB |
| 2 |
| 3 |
| BC |
| AB |
| 2 |
| 3 |
| AC |
| AB |
| 1 |
| 3 |
| AB |
| 2 |
| 3 |
| AC |
| 1 |
| 3 |
| 1 |
| 3 |
在△ABC中，已知P为中线AD的中点．过点P作一直线分别和边AB、AC交于点M、N，设