1 . 已知
,设
:实数
满足
,
:实数
满足
.
(1)若
时,“
”为真,求实数
的取值范围;
(2)若
是
的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be04cac6e63c64ad16743583f4ec02b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a77c0beedfc9a5104acd19c60c09a02.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
2 . 已知命题
,若
是
的充分不必要条件,则实数a的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9c5820a44b3bb2bb513fd949ec34de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e442eb9fae52d740b600bff0ee4aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6659e3aec36b969f21633c5efe3ac46.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-05-13更新
|
1912次组卷
|
4卷引用:江西省赣州市2021-2022学年高二上学期期末数学(文)试题
江西省赣州市2021-2022学年高二上学期期末数学(文)试题江西省赣州市第三中学2021-2022学年高一下学期期中考试数学试题(已下线)专题1.12 集合与常用逻辑用语 全章综合测试卷-提高篇河南省实验高级中学2022-2023学年高一上学期9月月考数学试题
名校
3 . 如图,在四面体OABC中,
,
,
,点
在线段
上,且
,
为
的中点,则
等于( )
![](https://img.xkw.com/dksih/QBM/2022/1/20/2898743591747584/2921312243023872/STEM/dbd47155-7165-4b49-95b1-52756fac90fe.png?resizew=177)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a9cb32a25c2a8bb99f75633b4cd5ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/049131856ba841523793ee3d83099014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eca8aa7145b2327dbccba46da05bb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fed047057b4761eb26c763f563e39667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd4b9ad667f6da79bc3a5737cbc1eee.png)
![](https://img.xkw.com/dksih/QBM/2022/1/20/2898743591747584/2921312243023872/STEM/dbd47155-7165-4b49-95b1-52756fac90fe.png?resizew=177)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-02-21更新
|
495次组卷
|
4卷引用:江西省赣州市宁都县安福中学2022-2023学年高二上学期期末数学试题
4 . 椭圆
的长轴长是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80a47fd46072cd717442cb378d431ee.png)
A.3 | B.4 | C.6 | D.8 |
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5 . 在空间直角坐标系中,已知
,
,则MN的中点P到坐标原点О的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf72ede72f287780a09e8dfe8d3cfa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85f96853052449d10565b4d1fc36b6d5.png)
A.![]() | B.![]() | C.2 | D.3 |
您最近一年使用:0次
2022-02-11更新
|
269次组卷
|
2卷引用:江西省赣州市2021-2022学年高二上学期期末数学(文)试题
名校
解题方法
6 . 过双曲线
的右焦点F作一条渐近线的垂线,垂足为M,且FM的中点A在双曲线上,则双曲线离心率e等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-02-11更新
|
256次组卷
|
2卷引用:江西省赣州市2021-2022学年高二上学期期末数学(文)试题
解题方法
7 . 已知椭圆
的离心率为
,椭圆的上顶点到焦点的距离为
.
(1)求椭圆的方程;
(2)若直线
与椭圆
相交于
、
两点(
、
不是左、右顶点),且以
为直径的圆过椭圆
的右顶点
,求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
(1)求椭圆的方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
8 . 已知双曲线
的一条渐近线方程为
,且与椭圆
有公共焦点,则双曲线
的标准方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d585d2d6643471640905d234d9538c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fef53df361100dd33c7ac4a561d6c1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
9 . 抛物线
:
的焦点为F,点A,B,C在E上,O是坐标原点,若点F为
的重心,
,
,
的面积分别为
,
,
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d4d1749aff342733ad3953a9348adc.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92fb4c7a4bf45e467b2d90f6325056c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff3b4de4a08843340abc16e10bbd3d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/716189b906950b7e8ee499e9b04f5b2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d4d1749aff342733ad3953a9348adc.png)
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解题方法
10 . 已知点M是椭圆C:
上一点,
,
分别为椭圆C的上、下焦点,
,当
,
的面积为
.
(1)求椭圆C的方程:
(2)设过点
的直线
和椭圆C交于两点A,B,是否存在直线
,使得
与
(O是坐标原点)的面积比值为5:7.若存在,求出直线
的方程:若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c9bebea391a1f9956dfcca98d9d1f1.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/1d4f7e7f33963df24d6a46067b4677e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634d47dc34a0f14a593fd4a3705334b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f9a699aededce0ad803bf8257fbbcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c341314ff6fa64dc6763b7e956a20453.png)
(1)求椭圆C的方程:
(2)设过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ed07d64bea40348d179123c869490e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec11ff3a07361d2d2ab9de7a194524c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-02-10更新
|
1055次组卷
|
4卷引用:江西省赣州市2022届高三上学期期末数学(文)试题
江西省赣州市2022届高三上学期期末数学(文)试题天津市和平区2022届高三下学期二模数学试题(已下线)9.5 三定问题及最值(精练)(已下线)思想01 运用分类讨论的思想方法解题(5大核心考点)(讲义)