1 . 已知函数
,若函数
有4个零点,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b1604e4e586fcd6445b73f964b1011.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6785823721fb2e288b417ba2d617ef04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
2 . 已知椭圆C:
(
)的离心率为
,过右焦点的直线l与椭圆C交于M,N两点,且当
轴时,
.
(1)求椭圆C的方程;
(2)若直线l的斜率存在且不为0,点M,N在x轴上的射影分别为P,Q,且
,N,P三点共线,设
与
的面积分别为
,
,试判断
是否为定值,若是,求出该定值,如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165a501b2e6a3acc46212e59a166c053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1390452547b13f34f6e2ae3f7158e1d3.png)
(1)求椭圆C的方程;
(2)若直线l的斜率存在且不为0,点M,N在x轴上的射影分别为P,Q,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8f94583eab184c8c3e5108380294eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2ca3d56b93b5f218eaebb87045cd2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9264ba7eeee6189ad505169c12bbab1b.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/235f0a6fb218d28383e6f27f2df1f50f.png)
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解题方法
3 . 已知定义在
上的函数
满足对
,都有
,
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3274e4f317879cce3b59a8f34d84332e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0acb74208dcbe73fd8cbd89bf86bd69c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9da4fdfdddc259dcef9fdd4b826b64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7399fcd570d1de4057f2059759d18cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe351b46d54a6ddac526e5c2c3cc147.png)
A.![]() | B.0 | C.1 | D.3 |
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解题方法
4 . 已知函数
.
(1)当
时,求函数
极值;
(2)若对任意
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a355144856936e921ce27c4bf37c561.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a20457d180264f78d611dc7893d735.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c164755dc2d7cff80fb4c9cffc9be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1a913bc095fd52f8f41984b169c95b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
5 . 已知直线
过定点
,动圆
过点
,且在
轴上截得的弦长为4,设动圆圆心轨迹为曲线
.
(1)求曲线
的方程;
(2)点
,
,
为
上的两个动点,若
,
,
恰好为平行四边形
的其中三个顶点,且该平行四边形对角线的交点在
上,记平行四边形
的面积为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f0df983baab580206f665dd278606d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c179fe7eff7abfdd092b63c9c1b82d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7571e2f20e482a852a5d4639480f6a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7571e2f20e482a852a5d4639480f6a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de3f3431c847e8f8447dfa86af8c85f8.png)
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2024-05-02更新
|
341次组卷
|
4卷引用:陕西省咸阳市2024年高考模拟检测(三)数学(文科)试题
陕西省咸阳市2024年高考模拟检测(三)数学(文科)试题四川省成都市石室中学2024届高三下学期高考适应性考试(二)理科数学试卷四川省成都石室中学2024届高三下学期高考适应性考试(二)文科数学试卷(已下线)专题1 几何条件代数化【练】(压轴题大全)
名校
6 . 已知函数
.
(1)若函数
在点
处的切线与直线
垂直,求a的值;
(2)当
时,讨论函数
零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa7805cef388cea5d032dd794684b24.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f64462890e11b10e0188700e6b7428e5.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71bb7883ea87e6275472dbe14ee62357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c35c0d0220f8997f226c0a8cf24d712.png)
您最近一年使用:0次
名校
7 . 已知函数
.
(1)求曲线
在
处的切线方程;
(2)若
,
,
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf266c400ec9f20afcdb1c76a62c6c8.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff4f47b146dbd4820654affb735fbc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b49e0c9709fe2e31e0698efa8ffaceb.png)
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8 . 已知
,且
时,
,则下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff55a067a7ae2e612d5c649280aa635d.png)
A.![]() |
B.当![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() |
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9 . 对任意的实数x,记函数
(
表示m,n中的较小者).若方程
恰有5个不同的实根,则实数t的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539c7ad402325e12caaaec976b378355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0898d7174604fa223558cb25b4c78b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83b27c57488f196beb569272db63fd22.png)
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解题方法
10 . 已知函数
,现给出下列四个结论:
①
的图象关于点
对称;
②函数
的最小正周期为
;
③函数
在
上单调递减;
④对于函数
.
其中所有正确结论的序号为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413a384a2543c2cbdeec5e5d27e42720.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8c5671c7a231e69641186f554755f0.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c8329254147b4fd1299ff4ea2e19fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e2d7c958e99bcd9d7f251c19ee3544.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9820fb62ad00c4145c7f600cfe45ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01dc2d99655cf7598837cb0886166ed.png)
④对于函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86f59b73323dee5093d927700e3b48ed.png)
其中所有正确结论的序号为( )
A.①② | B.①③ | C.①③④ | D.②③④ |
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