名校
解题方法
1 . 如图:正四棱锥
中,若高为
,底面边长为
,
为
的中点,并建立如图所示的空间直角坐标系,若点
到直线
的距离等于到直线
的距离,则点
的轨迹方程是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a6083125552bdc501f8305a56efd25a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/17/388ca2ec-7f2f-4af5-a32a-2d614248434a.png?resizew=187)
您最近一年使用:0次
名校
2 . 已知正方体
的棱长为
,点P在
的内部及其边界上运动,且
,则点P的轨迹长度为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5d26a159cd47bafef7e446194bd0e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f403d7982e80e4b0a306e64e7e72fa0.png)
您最近一年使用:0次
2022-05-22更新
|
311次组卷
|
4卷引用:河北省秦皇岛市青龙满族自治县实验中学2023届高三上学期期末数学试题
解题方法
3 . 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)
您最近一年使用:0次
2022-01-24更新
|
494次组卷
|
7卷引用:河北省石家庄市行唐县2022届高三上学期期末数学试题
4 . 若圆
与恒过点
的直线交于
两点,则弦
的中点
的轨迹方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0707232dffa97ef15df4cbd74e1517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2017-08-17更新
|
838次组卷
|
2卷引用:河北省邯郸市2016-2017学年高一下学期期末考试数学试题