如图,在圆锥
中,
是底面圆的直径,
,
,E为SC的中点,点D在SO上,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514f4f3b3a53fc17d8268f012049acef.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e5ef91fb27dd684a27ae7f1993cfba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47f01e7b52080d97db2477859ee9cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4151e948feebdf7b91fbe739feafa9bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514f4f3b3a53fc17d8268f012049acef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/12/28662d78-9021-4f9c-bf45-90c07e4987ab.png?resizew=138)
更新时间:2023-10-10 19:58:27
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