解题方法
1 . 如图所示,在长方体
中,
分别是线段
上的点,且
,
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/20ad0c09-f58c-4722-82ef-28bdebc2b840.png?resizew=159)
(1)建立适当的坐标系,写出
的坐标.
(2)求直线
与
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cf24034f996397a2380b2603d0e998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339f54133ffd1bde7dcaf56c29d57638.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/20ad0c09-f58c-4722-82ef-28bdebc2b840.png?resizew=159)
(1)建立适当的坐标系,写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b60c2f18bda471546520ab20fff9b188.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becf2941e15d668d93ea6ed980afd0ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e54ad0870e36726547ee79f6e093be.png)
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解题方法
2 . 已知正方体
,求证
(1)
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf9628142422a4884bd59538da6d312.png)
(2)求平面
与平面
所成夹角的余弦值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d26d8a9d64ad3c8cba28840b41ed7837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf9628142422a4884bd59538da6d312.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4294ffdba16ae69fd03b13959d682aba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c237015ab2c034ca97cbb3928f7f9b.png)
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解题方法
3 . P为抛物线
上动点,则P到焦点
的距离与到
的距离之和最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d5545195ade2bda359e683715332e83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1294434b22cb5133043a2270ae1c43f.png)
A.2 | B.![]() | C.3 | D.![]() |
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解题方法
4 . 已知
是双曲线
的左,右焦点,
的一条渐近线
的方程为
,且
到
的距离为3,
为
的第一象限上的一点,点
的坐标为
为
的平分线,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204196267ea8c9ec2544b3084d7952da.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86bebdf5931efbdc627baa52f97392e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64dfdc4da53a7913b01647d751c77c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204196267ea8c9ec2544b3084d7952da.png)
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解题方法
5 . 若空间三点
,则点
到直线
的距离为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e6acd3fbc3fabd9902148de69d9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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解题方法
6 . 古希腊数学家阿波罗尼奥斯发现:平面上到两定点
距离之比为常数
且
的点的轨迹是一个圆心在直线
上的圆,该圆简称为阿氏圆.根据以上信息解决下面的问题:在长方体
中,
,点
在棱
上,
,动点
满足
为棱
的中点,
为
的中点.以
为原点,
所在的直线为
轴,
轴,
轴,建立如图所示的空间直角坐标系.下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844da174d67557f7a44c0962d51189b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56a9870ee77ce3930c6692af93bc7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e38caa80bd08fcab912cd29270c7f74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11fbc3a1f1e848cf1349b9327be8607d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9128154f4ffbfcba71b2d38ed52b7ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af55b84645a6a98e36ad57c96938af8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
A.若点![]() ![]() ![]() ![]() |
B.若点![]() ![]() ![]() ![]() |
C.类比阿氏圆定义,点![]() ![]() |
D.若点![]() ![]() ![]() ![]() ![]() |
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7 . 经过抛物线
的焦点
的直线交抛物线于
两点,设
,
,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
A.![]() |
B.![]() |
C.以焦半径![]() ![]() |
D.![]() |
您最近一年使用:0次
2024-01-12更新
|
541次组卷
|
5卷引用:黑龙江省齐齐哈尔市2023-2024学年高二上学期期末考试数学试题
8 . 设
是空间中两两夹角均为
的三条数轴,
分别是与
轴正方向同向的单位向量,若
,则把有序数对
叫作向量
在坐标系
中的坐标,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b53cb1302f163699ecbefb7e90fd1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a11e71578cd46b896d7564ab4d3d4a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb4f795474089c4ca5183f0b8c8210d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a14c388e1e2e5a2ff1ccf6caffbee0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/708258477c2b0001f755ad9f7f00ef7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d1fe0a63a9e51237d7ebffb282c21a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91174b2336306191ba275a87864172b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a834024400d0730af3e640ca4d5f54b4.png)
A.若向量![]() ![]() ![]() |
B.若向量![]() ![]() ![]() |
C.若向量![]() ![]() ![]() ![]() |
D.若向量![]() ![]() ![]() ![]() ![]() |
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名校
解题方法
9 . 正方体
的棱长为
为棱
中点,
为正方形
内(舍边界)的动点,若
,则动点
的轨迹长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c31c5fa34e3bb32d7decfd6529b784c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9b0ab184d6db290129c0ddcc13587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-12更新
|
387次组卷
|
5卷引用:黑龙江省齐齐哈尔市2023-2024学年高二上学期期末考试数学试题
黑龙江省齐齐哈尔市2023-2024学年高二上学期期末考试数学试题(已下线)专题13 空间向量的应用10种常见考法归类(4)(已下线)高二数学开学摸底考 01(人教A版,范围:空间向量与立体几何+直线与圆+圆锥曲线+数列)-2023-2024学年高二数学下学期开学摸底考试卷吉林省长春市朝阳区长春外国语学校2023-2024学年高二下学期开学考试数学试题福建省福州市福清第一中学2023-2024学年高二下学期开门检测数学试题
解题方法
10 . 已知倾斜角为
的直线经过抛物线
的焦点
,且与抛物线交于
两点,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0261104a7c308433a0c0508ff20ea29a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae6f48b9a53c0155a692509cf31f7e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
A.6 | B.8 | C.12 | D.24 |
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