四面体ABCD中,已知
,
,则异面直线AC与BD所成角的正弦值是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e15b22b4be1f8d41d22a5e175a42ad.png)
2018高三·辽宁·竞赛 查看更多[1]
更新时间:2019-01-28 19:58:32
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