如图,
,平面内有一射线
,且
,若
平分
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa5cf44105da68471ae4a2df38068fd.png)
______
.(用含n的代数式表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79cc6c50133cf92b3e30c429f63d00d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995d425298b1d7e205e02a06306821dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c9de708d1544ebe0b82e7e6e2102382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa5cf44105da68471ae4a2df38068fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/23/983d5bed-268e-42ae-a3af-d401e4434ade.png?resizew=128)
更新时间:2024-01-24 10:34:28
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