解题方法
1 . 已知
为正方体
表面上的一个动点,
,
是棱
延长线上的一点,且
,若
,则动点
运动轨迹的长为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9c41fe1a1af563832f5374bca9b1a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4800eb70adcfd82fafd2720eddb5227f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2022-01-24更新
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494次组卷
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7卷引用:内蒙古通辽市2021-2022学年高三上学期期末考试数学(文)试题