设动点
在棱长为
的正方体
的对角线
上,且异于点
,
记
当
为锐角时,
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d6c5683907ae81dec406f062e8d16d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f243978ba3d15e97f1e5b83ee4a0fec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbf1667b21a273bf5dd007d65eeda7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
更新时间:2023-10-18 07:28:57
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【推荐1】球
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【推荐2】在四面体
中,棱
,
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为
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______ .
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【推荐1】如图,在长方体
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b492d99c54c1d881aa0532d918c19389.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6069dc466eec75bbeb3d5c9b51cb3a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f734ed6ddf5b05e496519b15a4edc30.png)
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其中正确的命题是
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【推荐2】如图,AB为圆柱下底面圆O的直径,C是下底面圆周上一点,已知
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