名校
1 . 在四棱锥
中,底面ABCD为矩形,
为边长为2的正三角形,且平面
平面ABCD,E为线段AD的中点,PE与平面ABCD所成角为45°.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/25/1b035b89-13e8-4f45-ae39-e89085b968eb.png?resizew=181)
(1)证明:
;
(2)求证:平面
平面PBC.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/25/1b035b89-13e8-4f45-ae39-e89085b968eb.png?resizew=181)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26fadb171a32463365ef01f91629ffb2.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22583ac400216f5aa56a84284efe4b12.png)
您最近一年使用:0次
2023-04-23更新
|
1047次组卷
|
2卷引用:四川省成都市第七中学2022-2023学年高二下学期期中考试数学(文)试题
2 . 如图,在四棱锥
中,平面
平面
,
,
,
,点
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/30/4ba73c26-4b04-4e73-9c04-16e6eb41d21f.png?resizew=167)
(1)求证:
平面
;
(2)在线段
上是否存在一点
,使直线
与平面
所成的角正弦值为
,若存在求出
的长,若不存在说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf9a6db3571fa57bfa2d5e4d44c51b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d31600cba2d5256c7e78b6122d6755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057cbfac91a2db828821d10be34b4a41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7477fccf4400c9c654e4fe3477032ad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/30/4ba73c26-4b04-4e73-9c04-16e6eb41d21f.png?resizew=167)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e0684e0b09b04661c602437982c0397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5574cb03120531bc3fe95db9a5802817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff9fae202b6752ede68391086a2e56cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
(
,且
)在
上的最大值比最小值大2.
(1)求
的值;
(2)设函数
,求证:
为奇函数的充要条件是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d76ee3b131ecd6aa1aacf7fb7b3eb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/954ad91827f930515da603a1255cab2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
您最近一年使用:0次
解题方法
4 . 已知椭圆
和双曲线
的焦距相同,且椭圆
经过点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/2931aeb7-5736-4cc8-92b8-f8fbb7089e45.png?resizew=376)
(1)求椭圆
的标准方程;
(2)如图1,椭圆
的长轴两个端点为
,垂直于
轴的直线
与椭圆
相交于
两点(
在
的上方),记
,求证:
为定值;
(3)如图2,已知过
的动直线与椭圆
相交于
两点,求证:直线
的交点在一条定直线上运动.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c118b51ab426bc1c1b56179094f146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea74737939c0f94c91229a7098f36ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ffbc4c14ab3dfb4cad27ffadb516687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/2931aeb7-5736-4cc8-92b8-f8fbb7089e45.png?resizew=376)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)如图1,椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47b6c9f2321a71fe74951a89801906d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
(3)如图2,已知过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a21d7d92e58bf612ac018314ef14c6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c008e6e3eac674fd5e774ee0ad357c.png)
您最近一年使用:0次
解题方法
5 . 已知函数
.
(1)求
.
(2)求证:函数
在
上是单调减函数.
(3)求函数
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcc8cc2fd258f388fb37ed2c6f4c46da.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4474bd87c00ac3ee99ab366527ded109.png)
(2)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2ec965488c7e1cea085463c7731285.png)
您最近一年使用:0次
解题方法
6 . 如图的几何体中,
平面
,
平面
,
为等边三角形,
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/3d98522e-034f-4418-8aa1-3b29a918a5fc.png?resizew=181)
(1)求证:
平面
;
(2)求证:平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d2d217e9bcd059908f117dfc4d4259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d3966314cac2e80fc1a95403310077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/3d98522e-034f-4418-8aa1-3b29a918a5fc.png?resizew=181)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d46554105150391e671609fc6348a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39282bdf319f30d7bc261e2e3ab3b1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
您最近一年使用:0次
名校
7 . 如图,在直三棱柱
中,
,
,
,
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/21/4d777820-dcd8-403d-b879-04cebcf381b1.png?resizew=141)
(1)求证:
平面
;
(2)求直线
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a115d676b784e1f593350889e95f7db7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/21/4d777820-dcd8-403d-b879-04cebcf381b1.png?resizew=141)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7592c4f01c8e06c7ee90df5b9413a9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212a67f115d1cbe69f100b489babe5f8.png)
您最近一年使用:0次
2023-11-21更新
|
895次组卷
|
4卷引用:四川省南充高级中学2023-2024学年高二上学期11月期中考试数学试题
8 . 已知首项为4的数列
的前n项和为
,且
.
(1)求证:数列
为等比数列;
(2)求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/525b2e213d0dea50cd658e7ae366f076.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3aa58f647f4af83647f140cfb8dc7f.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
2023-11-18更新
|
1364次组卷
|
5卷引用:四川省成都市石室中学2023-2024学年高三上学期期中考试理科数学试卷
四川省成都市石室中学2023-2024学年高三上学期期中考试理科数学试卷四川省成都市石室中学2023-2024学年高三上学期期中考试文科数学试卷四川省成都市第七中学2024届高三上学期理科数学综合测试题河南省郑州市宇华实验学校2024届高三上学期12月月考数学试题(已下线)专题08 数列(5大易错点分析+解题模板+举一反三+易错题通关)
名校
解题方法
9 . 一个多面体的三视图和直观图如图所示,其中正视图和俯视图均为矩形,侧视图为直角三角形,
是
的中点.
(1)求证:
平面
;
(2)若
为线段
上一点,且
,二面角
的余弦值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/4/495138e0-0689-463a-98c2-a1fbc7d6f4b6.png?resizew=199)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/4/395f5e0a-9837-43bd-a916-6234010540af.png?resizew=188)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34cf61780928291d51c7bbb08a5fcf81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4291a7c647aaf6d00e48bed030b48c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8437cc44306522f9b993b6f914a1b25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5531c8082ee1aa4959a2cb724f3ad3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
10 . 如图,在棱长为2的正方体
中,点
分别是线段
的中点.
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef7e4a2abf11515a3b116d67fcdd655.png)
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5475302008dbbb797fcd0f9ca710ed6c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/29/363ff93c-dce4-4d09-b0ce-948c5e74f1e4.png?resizew=173)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef7e4a2abf11515a3b116d67fcdd655.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0192f1e227981c8eda8c0fa24ce8a7bc.png)
您最近一年使用:0次
2023-10-27更新
|
470次组卷
|
3卷引用:四川省成都市龙泉驿区东上高级中学2023-2024学年高二上学期期中数学试题
四川省成都市龙泉驿区东上高级中学2023-2024学年高二上学期期中数学试题湖北省宜昌市宜都市第一中学2023-2024学年高二上学期期中数学试题(已下线)考点10 空间向量的应用 2024届高考数学考点总动员【讲】