1 . 设命题
,则
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4618acf3262c18e922160e8708ea965.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-12-01更新
|
296次组卷
|
2卷引用:四川省泸州市合江县马街中学校2023-2024学年高一上学期期中数学试题
解题方法
2 . 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
3 . “
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c18b0f6e52411b93121d35d06ae06e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fca5062d79546253d025cf3cd59839.png)
A.充分不必要条件 | B.必要不充分条件 | C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2023-11-28更新
|
430次组卷
|
2卷引用:四川省泸州市2024届高三第一次教学质量诊断性考试数学(理)试题
4 . 已知命题
,
,命题
,
,则下列命题是真命题的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44bef5e2df41b92f8aa7319710f79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a2221798e618c3fd3a10a3b67eacb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b170b09056bd176734c4f6e2db0899c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500b65ebeb776579da18d2ba1e9c6eb0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
5 . 关于
的不等式
对任意
恒成立的充分不必要条件有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e34af630c18f66f12f86ad9602e1bbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-11-28更新
|
154次组卷
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2卷引用:四川省泸州市泸县第四中学2023-2024学年高一上学期期末数学试题
6 . 已知函数
.
(1)若
,证明:当
时,
;
(2)若函数
在
上有三个零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb59f05370e6d6e7931202b6acbf0c8c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fe2115d883d13561e28006d3f6143b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4138f6987cd2ee9e56b2ac80e84f9e24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/556eac935a69ae56fb1d63bee5a1e5dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ecd9b82656fa92f59cc80c8938e12f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
7 . 写出“使函数
在区间
上单调递增”的实数
的一个值________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4bd422a4a1abec9d9daefb57750600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-11-27更新
|
181次组卷
|
2卷引用:四川省泸州市2024届高三第一次教学质量诊断性考试数学(文)试题
8 . 已知椭圆
的左右焦点分别为
,点
是椭圆
上三个不同的动点(点
不在
轴上),满足
,且
与
的周长的比值为
.
(1)求椭圆
的离心率;
(2)判断
是否为定值?若是,请求出定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81687c0af83f550bcb802e2d82c76a61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031d444d27da05ef4449f9a8acb3c9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246482388ea686b373fc1ad3e18347be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9a8ceaf89d3d6c829df9e134f93b01.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
您最近一年使用:0次
2023-11-27更新
|
993次组卷
|
5卷引用:四川省泸州市泸县第五中学2023-2024学年高二上学期期末数学试题
9 . 已知函数
,且
恒成立.
(1)求实数
的最大值;
(2)若函数
有两个零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55dc1abc472c1f8a3e0839147b3fb11e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1b7b6ec7510a7bab45bfaba52f0b38a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
10 . 已知
是函数
的极值点.
(1)求
的值;
(2)若函数
在
上存在最小值,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d599059e6b2c918ab15ee22611b6962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15016cd069fa8278ac02b0f1bf37364d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d78a6977cea8b6480da24805b27c8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
2023-11-26更新
|
599次组卷
|
6卷引用:四川省泸州市2024届高三第一次教学质量诊断性考试数学(理)试题
四川省泸州市2024届高三第一次教学质量诊断性考试数学(理)试题四川省泸州市2024届高三第一次教学质量诊断性考试数学(文)试题(已下线)第五章 一元函数的导数及其应用(知识归纳+题型突破)-2023-2024学年高二数学单元速记·巧练(人教A版2019选择性必修第二册)(已下线)专题1.4 利用导数研究函数的极值和最值(八个重难点突破)-2023-2024学年高二数学下学期重难点突破及混淆易错规避(人教A版2019)(已下线)第五章 导数及其应用(知识归纳+题型突破)(3)(已下线)专题10 3 个二级结论速解导函数与原函数问题