1 . 已知正方体
的棱长为1,
是棱
上的动点,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c851cf4994e90632536297d151badc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/20/00f0c16e-4f8b-4f02-8f62-937148ef7800.png?resizew=181)
A.![]() ![]() | B.![]() |
C.二面角![]() ![]() | D.三棱锥![]() ![]() |
您最近一年使用:0次
2 . 已知圆C经过两点,且与x轴的正半轴相切.
(1)求圆C的标准方程;
(2)若直线l:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04836ba2906cf6f1e9aecd2a00824aae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac35b1e8a952aac4f4cdaaf02d868d04.png)
您最近一年使用:0次
2023-09-18更新
|
664次组卷
|
9卷引用:浙江省杭州第四中学吴山校区2021-2022学年高二上学期期末数学试题
浙江省杭州第四中学吴山校区2021-2022学年高二上学期期末数学试题浙江省温州市平阳县万全综合高级中学2022-2023学年高二上学期10月检测数学试题浙江省嘉兴市海盐第二高级中学2022-2023学年高二上学期10月第一阶段检测数学试题陕西省安康市汉滨区五里高级中学2022-2023学年高二上学期期中数学试题(已下线)专题2.17 直线与圆的方程大题专项训练(30道)-2022-2023学年高二数学举一反三系列(人教A版2019选择性必修第一册)(已下线)高二上学期期末【全真模拟卷02】-2022-2023学年高二数学考试满分全攻略(人教A版2019选修)(已下线)考点巩固卷19 直线与圆(十二大考点)(已下线)模块三 专题5 大题分类练(直线和圆的方程)拔高能力练 期末终极研习室(高二人教A版)(已下线)通关练11 圆的方程大题10考点精练(47题)- 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教A版2019选择性必修第一册)
解题方法
3 . 已知函数.
(1)证明:函数f(x)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cbdf18d833a156104a3beb25fc8a76a.png)
(2)若对于区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed8c3e79e9132d02a43771158a58d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad21c2296ed7bfa484688314de8ec77f.png)
您最近一年使用:0次
2023-09-18更新
|
93次组卷
|
3卷引用:浙江省宁波市2021-2022学年高一上学期期末数学试题
解题方法
4 . 已知长方体
中,
.若
是侧面
内的动点,且
,则
的长度的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc47c942cbeed3c3553c2b1ea28aee5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a52818f1e8b7c27f207abae182a64d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
A.![]() | B.6 | C.![]() | D.![]() |
您最近一年使用:0次
5 . 如图,在直四棱柱
中,底面
是菱形,
,
,
,
是
的中点.
(1)求证:
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bbaccd578a43b2397c8bdd50592fa07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/19/e50033c1-3861-4cf9-ae2c-de050848314e.png?resizew=123)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c4868519925e6297a716def14d5662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923189afc198d153c79059a827f63c87.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923189afc198d153c79059a827f63c87.png)
您最近一年使用:0次
2023-09-17更新
|
582次组卷
|
4卷引用:浙江省绍兴市蕺山外国语学校2022-2023学年高二上学期11月期中数学试题
名校
解题方法
6 . (多选题)点
在圆
:
上,点
在圆
:
上,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c359266a023b00ecc462590e25f502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe72bee16369fc5617ac01d8fc9ad44.png)
A.实数![]() ![]() |
B.当![]() ![]() ![]() ![]() |
C.当圆![]() ![]() ![]() |
D.当圆![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-09-17更新
|
1018次组卷
|
4卷引用:浙江省绍兴市蕺山外国语学校2022-2023学年高二上学期11月期中数学试题
浙江省绍兴市蕺山外国语学校2022-2023学年高二上学期11月期中数学试题(已下线)2.5 直线与圆、圆与圆的位置关系(分层练习)-2023-2024学年高二数学同步精品课堂(人教A版2019选择性必修第一册)广东省湛江市第二十中学2023-2024学年高二上学期11月期中数学试题(已下线)专题2.3 圆与圆的位置关系(2个考点六大题型)-2023-2024学年高二数学《重难点题型·高分突破》(苏教版2019选择性必修第一册)
解题方法
7 . 如图,在三棱锥
中,
平面
,
,
,
,则平面
与平面
所成锐二面角的余弦值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e0b7d845cbceccd3e76ca461fcc534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6bdfb0e1be5583e794ab614a8abe1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3bc83b7bb9d8e61c4656936fb112139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/19/54a26827-fdf1-4fef-9887-ca5fc45d1f45.png?resizew=147)
您最近一年使用:0次
8 . 直线
:
与圆
:
交于
,
两点,则直线
与直线
的倾斜角之和为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7202181091999688e52fbb3c005ada90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/230968f69f983e41df42dd82ea8265b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
您最近一年使用:0次
9 . 已知点
是圆
:
上的一个动点,点
到直线
:
的距离的最小值为
,圆
:
与圆
外切,且与直线
相切,则
的值为( )
![](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/ffd767240a603ca0c0db5567707eb704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f0c9740e1d2380cbe9cf20f2ee8883e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20655cbfe054a8be3e02979e7fcce038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dd2a6bcb228b5fe200a4d4ed71ae3bd.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/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.4 | D.![]() |
您最近一年使用:0次
解题方法
10 . 如图,在长方体
中,已知
,
分别为
,
的中点,
.
(1)求证:平面
平面
;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52b831505d45f13caa4804694fe1072.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/19/42681b0e-fcf8-4e91-bad8-88c4b2cc62f3.png?resizew=154)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6dd051db98c531f9ef18cdfd793f4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d72fb43e78bd784435ebb49776c56ec.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86528150ef3ef85c732ea23e96c26972.png)
您最近一年使用:0次