1 . 如图,三棱柱
中,侧棱
底面ABC,且各棱长均相等,D,E,F分别为棱AB,BC,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/4/48d2aca1-6308-4fa7-8c42-2d9e01b65657.png?resizew=180)
(1)证明
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ecf072589c0f901d92f6bda111d841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/4/48d2aca1-6308-4fa7-8c42-2d9e01b65657.png?resizew=180)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bca84ad86c648d3bb20c8909c8da3f.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bca84ad86c648d3bb20c8909c8da3f.png)
您最近一年使用:0次
解题方法
2 . 设圆C的圆心在直线
上,圆C与直线
相切于点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ebd2da016e7029c4dd72b9e377190c.png)
(1)求圆C的方程;
(2)过点
的直线与圆C相交于A、B.若
,求直线AB的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4407788e4dc88210bca71a2551d4f2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0985b973395bcd371cd1e26d3fcd1c36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ebd2da016e7029c4dd72b9e377190c.png)
(1)求圆C的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ebd2da016e7029c4dd72b9e377190c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae5a64bcb77f5f64e4af6930c249a270.png)
您最近一年使用:0次
3 . 如图,AB是
的直径,PA垂直于
所在的平面,C是圆周上不同于A,B的一点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c88c1a4d34849163c48a145bdcb1fc.png)
平面
;
(2)求二面角
大小的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c88c1a4d34849163c48a145bdcb1fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b33b7213d99a817bff19bcf740a0697c.png)
您最近一年使用:0次
解题方法
4 . 双曲线
左右焦点分别为
,若双曲线C经过点
且一条渐近线方程为
.
(1)求双曲线C的方程;
(2)过
作倾斜角为
的直线
交双曲线
于
两点,求
的面积(
为坐标原点).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4083b941109b4c219527c875c60cb608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bdeeb6f5e38e3464c357d00839a6ce.png)
(1)求双曲线C的方程;
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
解题方法
5 . 设
.
(1)求
的解集;
(2)若不等式
对任意实数
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d916b7145fb85cdfe34832a799316d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6213c81ca727adbcdda8cbdbe10c30a.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe7289134ddbb04ef304a26ae48672f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
解题方法
6 . 在直角坐标系
中,曲线
的参数方程
(
为参数).直线
的参数方程为以
为极点,
轴的非负半轴为极轴建立极坐标系.直线
的极坐标方程为
.
(1)求曲线
和直线
的普通方程;
(2)设点
的极坐标为
,曲线
和直线
的相交于
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/919d7c3a6c20104dafe3e2da2102a43a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a3e1c9877fbd227a93d43983d0c9cbd.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989765ee479031cda1def876e209becc.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/a5b1b15a4605fce993cb13aefbf40360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
您最近一年使用:0次
名校
解题方法
7 . 已知数列
的前
顶和为
.且
.
(1)求数列
的通项公式;
(2)在数列
中,
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29979f5524c288432fa4d86e43df4d85.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)在数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea283ff39325e1fd63dbea5a88c317ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
2023-12-18更新
|
4054次组卷
|
9卷引用:四川省自贡市2024届高三一模数学(文)试题
四川省自贡市2024届高三一模数学(文)试题四川省自贡市2024届高三一模数学(理)试题山东省烟台市爱华高级中学2023-2024学年高二上学期期末模拟数学试题(二)A卷云南省昆明市第三中学2023-2024学年高二下学期第一次综合测试数学试卷(已下线)第四章 数列(单元测试)-2023-2024学年高二数学同步精品课堂(人教A版2019选择性必修第二册)(已下线)专题09 数列的通项公式、数列求和及综合应用(练习)-2(已下线)第三套 艺体生新高考全真模拟 (一模重组卷)广西百色市平果市铝城中学2023-2024学年高二下学期4月月考测试数学试卷广东省深圳市翠园中学2023-2024学年高二年级下学期5.12数学考试
解题方法
8 . 如图,在四棱锥
中,底面
是正方形,侧棱
底面
分别是
中点.
与平面
的位置关系;
(2)若
与平面
所成角为
,求
到平面
的距离.
![](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/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c69fe26ce3e895dd5629647e1b3a1630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465799145108e10f22d433603f1e34ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7d8c07bb0876c1e3eec161968f3d88.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25701ec455722f16e78a2ca39a52a83d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7d8c07bb0876c1e3eec161968f3d88.png)
您最近一年使用:0次
解题方法
9 . 如图,在平面四边形
中,角
.设
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/7ade6ffb-3a20-47ac-bba9-226ef6ed6cd8.png?resizew=162)
(1)用
表示四边形
对角线
的长;
(2)是否存在
使四边形
对角线
最长,若存在求出
及四边形对角线
最长的值,若不存在请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b2cbbd027700d933a567826b79ac57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1950345548fe750b80ce79b168969ca.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/7ade6ffb-3a20-47ac-bba9-226ef6ed6cd8.png?resizew=162)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
2023-12-18更新
|
277次组卷
|
3卷引用:四川省自贡市2024届高三一模数学(文)试题
名校
解题方法
10 . 2025年我省将实行的高考模式,其中,“3”为语文、数学,外语3门参加全国统一考试,选择性考试科目为政治、历史、地理、物理、化学,生物6门,由考生根据报考高校以及专业要求,结合自身实际,首先在物理,历史中2选1,再从政治、地理、化学、生物中4选2,形成自己的高考选考组合.
(1)若某学生根据方案进行随机选科,求该生恰好选到“历政地”组合的概率;
(2)由于物理和历史两科必须选择
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e4d959ff11d236356172a8bbd8cb4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90198de4171921876c6a76f880377f46.png)
选择物理 | 选择历史 | 合计 | |
男生 | 10 | ||
女生 | 30 | ||
合计 | 30 |
附:.
0.10 | 0.05 | 0.025 | 0.01 | 0.005 | |
2.706 | 3.841 | 5.024 | 6.635 | 7.879 |
您最近一年使用:0次
2023-12-18更新
|
392次组卷
|
4卷引用:四川省自贡市2024届高三一模数学(文)试题
四川省自贡市2024届高三一模数学(文)试题四川省泸州市泸县第一中学2024届高三上学期期末数学(文)试题(已下线)人教B版2019选择性必修第二册综合测试-2023-2024学年高二数学同步精品课堂(人教B版2019选择性必修第二册)四川省眉山市仁寿第一中学校北校区2024届高三下学期二诊模拟数学(文)试题