名校
1 . 已知
,
两点到直线
:
的距离相等,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d79c945b36a1b03f15be06caf91a798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b979396a703fb14715ba39232f5786a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.6 | C.![]() | D.4或6 |
您最近一年使用:0次
2024-02-27更新
|
381次组卷
|
2卷引用:四川省绵阳市2023-2024学年高二上学期期末教学质量测试数学试卷
2 . 过抛物线
的焦点作直线l与C交于A,B两点,已知点
,若
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a42451bdbef6c82dbaf8e06f0614794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b768ea6a05cbf45b28fc46c501ba532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
解题方法
3 . 已知首项为1的正项等比数列
满足
.
(1)求
.
(2)令
,
是数列
的前
项和,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d625d94a59c9c95533fb79e908bc275.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb78d3a4209ebbede94346ba8cfc997a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.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/8050391385b496e9c059201e4f12600a.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
解题方法
4 . 设双曲线
的离心率为
,则当
取最小值时,
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f604e33709c58dd90a03b232e3fc31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f7dc14832c366c9b0cc081559ffd38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
A.![]() | B.2 | C.![]() | D.3 |
您最近一年使用:0次
解题方法
5 . 已知圆
经过三点
.
(1)求圆
的方程;
(2)求过点
且与圆
相切的直线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f971512343d79708a55d63ca8b07395.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
解题方法
6 . 如图,梭长为
的正方体
中,点M、N分别在线段
和
上运动,且
.
(1)用含有
的代数式表示
;
(2)当
最小时,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd58ab9389e58bd2034e859d940440e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/0f46d26f-0907-4bc3-a741-9e1aae424133.png?resizew=167)
(1)用含有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1885efcff0b903e314057dd153578600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
解题方法
7 . 已知双曲线
的左,右焦点分别为
,
,P为C左支上一点,
与C的右支交于点Q,若
,且
,则C的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cee0beb03d63b1a606c2e0c081da214.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42caa7376fc717dcf429f6cd2ec8e211.png)
A.![]() | B.![]() | C.![]() | D.3 |
您最近一年使用:0次
解题方法
8 . 在正方体
中,E为
的中点,F为直线
上的动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/b27a1724-a160-4a97-93d3-7ba950164955.png?resizew=164)
(1)若
,求平面AEF与平面
的夹角的正切值;
(2)若
,P为底面ABCD的中心,当点P到平面AEF的距离为
时,求线段CF的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/b27a1724-a160-4a97-93d3-7ba950164955.png?resizew=164)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06f87ac1824dc21b14046dc4ed2c98c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9409d443e7a883cce463cd38b607c6a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3aace91caec728e174daec29a3568ae.png)
您最近一年使用:0次
解题方法
9 . 已知
.
(1)若
,证明
与
中至少有一个小于0;
(2)若
均为正数,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c175e7e4f89080b5c19fa3fbcfc47b56.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2584d4e78881413d8ddd1ec84011db2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d9a692e9a18ebf339be5e7c25e2aac3.png)
您最近一年使用:0次
2024-02-22更新
|
89次组卷
|
2卷引用:四川省部分名校2023-2024学年高三上学期期末联合考试文科数学试题
解题方法
10 . 已知各项均为正数的数列
的前n项和为
,满足
,且
,
,则数列
的通项公式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
______ .
![](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/c9ab3ad3eab551995ffba49295b21247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b2b9862c10545d9fd3c1778e5bbb9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
您最近一年使用:0次