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解题方法
1 . 空间直角坐标系
中,经过点
,且法向量为
的平面方程为
,经过点
且一个方向向量为
的直线
的方程为
,阅读上面的内容并解决下面问题:现给出平面
的方程为
,经过
的直线
的方程为
,则直线
与平面
所成角的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e336d6ca2cae3d6e6c3810d7e521a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf95be25d34a7366bf4060d081329c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18714cd4b8d5f4d710b4eb40daeb25db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff4c767999174c06cee1c45b8fa908d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf95be25d34a7366bf4060d081329c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1478772289dd81bd9832406c279c3d7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f0582d9908f92f14cb02a6ccaf0eae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff26a6ee87f0129e936434a4ad97b240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8bb2a267bd5fd30513a259168c50f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7cac83c2d6e35502b764116a16ad04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7卷引用:山西省运城市教育发展联盟2023-2024学年高二上学期10月调研测试数学试题
2 . 如图,四棱锥
中,四边形
为直角梯形,平面
平面
,
.
(1)若
与
相似,三棱锥
的外接球的球心恰为
中点,求
与平面
所成角的正弦值;
(2)求四棱锥
体积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf9a6db3571fa57bfa2d5e4d44c51b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf6282bc65dd2ff06e9099db2aabe7f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38493a1cb15fc5256e458f23e497340d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/30/23351290-75ec-4a34-94e4-8bc3a9d39f51.png?resizew=127)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b465c5d8a5861b7b130e56dde8b1ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf9718967af7a01c5b4866ea6f73bbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b34cf4760da098099493d4627dacb878.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
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3 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632d69e1433dae393508d0c431460347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c8f75fbe2e88ca48684caa9d230df0d.png)
A.-19 | B.-20 | C.20 | D.19 |
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4卷引用:山西省运城市教育发展联盟2023-2024学年高二上学期10月调研测试数学试题
4 . 已知直线
的方向向量为
,平面
的法向量为
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bced2a1c7ae4443e530a5d94437ac21a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146fb36012ed5930ce048021ff50d02f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9701c3b1ec836a20492824d95a92b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e380108ba2cf04e68a5a9393d2b921c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bced2a1c7ae4443e530a5d94437ac21a.png)
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5 . 如图,
分别是四面体
的棱
的中点,
是
的三等分点(点
靠近点
),若
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/29/db3f5fea-2c8f-4f36-ba32-c648a8b64df6.png?resizew=176)
(1)以
为基底表示
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881ec4ef24907683dd46062e5ff149c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2237240a3a5108783d1b90c0d7572806.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/29/db3f5fea-2c8f-4f36-ba32-c648a8b64df6.png?resizew=176)
(1)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed18a92338c7578c18a5ba3a2ae1ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4731335d26e45bf7041b36c5f0a1121d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d27a9e2e35a727df29ff1d87d73dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/694cdf60ef30ed1cede03a92e866d70c.png)
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3卷引用:山西省运城市教育发展联盟2023-2024学年高二上学期10月调研测试数学试题
山西省运城市教育发展联盟2023-2024学年高二上学期10月调研测试数学试题辽宁省沈阳市重点学校联合体2023-2024学年高二上学期期末检测数学试题(已下线)第七章 应用空间向量解立体几何问题拓展 专题一 空间向量基底法 微点3 空间向量基底法(三)【基础版】
名校
6 . 命题
:
,
的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35eac3ba2858adffcd1f8052cd795269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/046cf3d7b67c218c96ef99fdd537e49e.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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解题方法
7 . “关于
的不等式
的解集为
”的一个充分不必要条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1a7dbbf777afc058ff0ec7f552c7f84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3卷引用:山西省运城市教育发展联盟2023-2024学年高一上学期10月调研数学试题
山西省运城市教育发展联盟2023-2024学年高一上学期10月调研数学试题黑龙江省齐齐哈尔市普高联谊校2023-2024学年高一上学期10月期中考试数学试题(已下线)2.3二次函数与一元二次方程、不等式【第三练】
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8 . 若命题“
,
”为真命题,则
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25de9c61161d30b7e805994296df6d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61181b4570eb5a1623c3e0aa9aaf4c34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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9 . 对任意实数
,
,
,下列命题中真命题的序号是________ .
①
是
的充要条件;
②“
是无理数”是“
是无理数”的充要条件;
③“
”是“
”的必要而不充分条件;
④
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c2c12e403e4dab34c0590455dc0ce8.png)
②“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbb9c306da912756c1292f5a9988d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
③“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5821f59d12217af9a3804379c8231f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8645952ea14b25443f411d39bdec641e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/199e9b71bddd6f73725518ab2d567b32.png)
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解题方法
10 . 如图,已知四棱锥
中,底面
为矩形,侧棱
底面
,
,
,
为侧棱
的中点.
(1)求异面直线
与
所成角;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83a04565a8ebaa111894b724b0ba266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/28/c52de96b-b556-4db2-bfa6-dfc26cb6c567.png?resizew=168)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb5255e2159617505e0c87d01437a57.png)
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