名校
解题方法
1 . 在空间解析几何中,可以定义曲面(含平面)
的方程,若曲面
和三元方程
之间满足:①曲面
上任意一点的坐标均为三元方程
的解;②以三元方程
的任意解
为坐标的点均在曲面
上,则称曲面
的方程为
,方程
的曲面为
.已知空间中某单叶双曲面
的方程为
,双曲面
可视为平面
中某双曲线的一支绕
轴旋转一周所得的旋转面,已知直线
过C上一点
,且以
为方向向量.
(1)指出
平面截曲面
所得交线是什么曲线,并说明理由;
(2)证明:直线
在曲面
上;
(3)若过曲面
上任意一点,有且仅有两条直线,使得它们均在曲面
上.设直线
在曲面
上,且过点
,求异面直线
与
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1277d620abbfa26fb39600e53e606d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1277d620abbfa26fb39600e53e606d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1277d620abbfa26fb39600e53e606d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa13f27f92b55bd7ecd9d750f98ae99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1277d620abbfa26fb39600e53e606d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1277d620abbfa26fb39600e53e606d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eedd047376c4cf1b9992cd8e4fe20df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d96461d2b3421aed548b754637ca8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d7a5b312e3d789a1070000315d63b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0d16a4e8cc77c0433abc88df0a4a3.png)
(1)指出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2beb91f10d2d8f2aa0dcc3f5cd1598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(3)若过曲面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ddad9072eb1393ce15ca0627c941b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
您最近一年使用:0次
2 . 设向量
,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfbde7bc9bf50fe84d397a6680a86b2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dec1e969f88b8f1d474fc92ec2fd787.png)
A.向量![]() |
B.![]() |
C.![]() ![]() ![]() |
D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 在正棱柱
中,
,点
满足
,其中
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0e44cb429eea46e7ee4320147192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac6b545127bd51036a5a7b0d3cd5b320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee72261f6901e62dfd0ffe547406544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e2e01346f60857ff635bb766802e57.png)
A.当![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
4 . 已知球O的表面积为
,正四面体ABCD的顶点B,C,D均在球O的表面上,球心O为
的外心,棱AB与球面交于点P.若
平面
,
平面
,
平面
,
平面
,
且
与
之间的距离为同一定值,棱AC,AD分别与
交于点Q,R,则
的周长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02dba908a505cff93e0b297d00b82a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a70051411f2fbba74fb4fe1b01aeb758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943b765718479c160ba61ec5c6f8c5f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77850f45bbab972fe8d0c46f40a14ed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e29bf5652f0d4f764c3606efcdb445f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b56ac80a9f1a2bb7d87815743f6668dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9177f43add5ca8480daa636afc5862b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fcc25e1939719b005068c85a76c0015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a56eca8dc73a0e8f0c6d3a41bb26bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5e26b670db37133ecbd7e54d1226a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1898d6fb68464c6dddd3018fb8c2b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6619f28e767d4dd431d4d066fb6ec4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e29bf5652f0d4f764c3606efcdb445f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c28abb154f41e1ca9816c9c9c2433ca.png)
您最近一年使用:0次
2024-03-15更新
|
1808次组卷
|
9卷引用:河南省南阳市西峡县第一高级中学2023-2024学年高二下学期第一次月考数学试卷
名校
解题方法
5 . 如图,在正方体
中,点
为线段
上的动点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.若平面![]() ![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
您最近一年使用:0次
2024-01-19更新
|
1024次组卷
|
3卷引用:河南省郑州市郑州外国语学校2024届高三上学期适应性训练数学试题
名校
解题方法
6 . 已知
是正四面体
的外接球的一条直径,点
在正四面体表面上运动,正四面体的棱长是2,则
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8eb37a4dd75318dcbd836395e575bd.png)
您最近一年使用:0次
名校
解题方法
7 . 在三棱锥
中,
,
,
为
的中点,
为
上一点,球
为三棱锥
的外接球,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebf91a833f6977fbefc242f8a8bbeef8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9151f36dc43515bc5f8f0a3728c4851.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
A.球![]() ![]() |
B.点![]() ![]() ![]() |
C.若![]() ![]() |
D.过点![]() ![]() |
您最近一年使用:0次
2024-02-17更新
|
1032次组卷
|
4卷引用:河南省驻马店市2023-2024学年高三上学期期末统一考试数学试题
河南省驻马店市2023-2024学年高三上学期期末统一考试数学试题 (已下线)专题13 棱台背景的立几综合湖北省黄冈市浠水县第一中学2024届高三下学期第一次高考模拟数学试题(已下线)第22题 球的切、接问题(高三二轮每日一题)
名校
8 . 已知正方体
的棱长为1,点P满足
,
,
,
(P,B,D,
四点不重合),则下列说法正确的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ae7072624587654d162548a80d7a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be7b5066a7ac79c102d2a30d6280d3ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
A.当![]() ![]() |
B.当![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-12-09更新
|
807次组卷
|
8卷引用:河南省周口市西华县第一高级中学等校2023-2024学年高二上学期一月联考数学试题
名校
解题方法
9 . 如图,在四棱锥
中,平面
平面
,底面
是矩形,
,
,
,点
是
的中点,则线段
上的动点
到直线
的距离的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e004715ae5b4f4a4272ed210ae460f4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2686149cd09003b9dcccb51d81fe51ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed66431681da1db8f7cb0f40cd19201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
您最近一年使用:0次
2023-10-10更新
|
645次组卷
|
8卷引用:河南省洛阳市强基联盟2023-2024学年高二上学期10月联考数学试题
河南省洛阳市强基联盟2023-2024学年高二上学期10月联考数学试题河北省2023-2024学年高二上学期10月月考数学试题(已下线)1.4.2 用空间向量研究距离、夹角问题【第二练】山东省菏泽市鄄城县第一中学2023-2024学年高二上学期12月月考数学试题湖南省常德市临澧县第一中学2023-2024学年高二下学期入学考试数学试题(已下线)第七章 应用空间向量解立体几何问题拓展 专题二 平面法向量求法及其应用 微点3 平面法向量求法及其应用综合训练【培优版】江苏省泰州中学2023-2024学年高二下学期期中考试数学试题江苏省扬州市第一中学2023-2024学年高二下学期5月教学质量调研评估数学试题
名校
10 . 空间中,两两互相垂直且有公共原点的三条数轴构成直角坐标系,如果坐标系中有两条坐标轴不垂直,那么这样的坐标系称为“斜坐标系”.现有一种空间斜坐标系,它任意两条数轴的夹角均为60°,我们将这种坐标系称为“斜60°坐标系”.我们类比空间直角坐标系,定义“空间斜60°坐标系”下向量的斜60°坐标:
分别为“斜60°坐标系”下三条数轴(
轴、
轴、
轴)正方向的单位向量,若向量
,则
与有序实数组
相对应,称向量
的斜60°坐标为
,记作
.
(1)若
,
,求
的斜60°坐标;
(2)在平行六面体
中,
,
,N为线段D1C1的中点.如图,以
为基底建立“空间斜60°坐标系”.
①求
的斜60°坐标;
②若
,求
与
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4664eed9e1abab0ed6397c58d70e731.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138c39673b579f1346c38398811105a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b525d8c768efd801ab58bc4c0da9221e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f60fd9ea272088c32da829aea1de070b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad77af674bcbc49460fb989fa973372.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/28/529200b0-ed2f-4650-8678-cb630e8d7d0f.png?resizew=193)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ade1012bfb509cb44ee60d6111e439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1f037129b07c0be3c9be28929655bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd8bbf47b69bbd7a6263b041290d11.png)
(2)在平行六面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a698be6c34b89c748764041281fd4da2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f0b24d3b14c326b2baa2d2c5e8db871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be560befd3ac8e670f8b6edd15edf31d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b462f38860b00ac3b9bb1708ddd7bd.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350f162ee9aa08f4c9779481a5ef1025.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c8938a2b0b3c9971764f833bb37a15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe6d728b430549f00bb9c0a7bf8bf7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350f162ee9aa08f4c9779481a5ef1025.png)
您最近一年使用:0次
2023-10-10更新
|
944次组卷
|
7卷引用:河南省实验中学2023-2024学年高二上学期期中考试数学试题
河南省实验中学2023-2024学年高二上学期期中考试数学试题四川省绵阳南山中学2023-2024学年高二上学期10月月考数学试题(已下线)模块一 专题1 空间向量的基本运算 B提升卷 期末终极研习室(2023-2024学年第一学期)高二人教A版安徽省卓越县中联盟2024届高三上学期第三次质量检测数学试题四川省成都市2023-2024学年高二上学期期末练习数学试题(3)(已下线)专题22 新高考新题型第19题新定义压轴解答题归纳(9大核心考点)(讲义)江苏省南京人民中学、海安实验中学与句容三中2023-2024学年高二下学期3月月考数学试题