在直角三角形ABC中,
,
,对于平面
内的任一点
,平面
内总有一点
使得
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a5a8024e83f241751db0e7a2d8ef1e.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aebec30356b590a72bc2a75f9b09221.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/053e9caf02bcb3ea11750225e2e230cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa614b0b6c0c8ff3a9ee0709cf44d061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a5a8024e83f241751db0e7a2d8ef1e.png)
更新时间:2019-05-09 16:59:47
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