1 . 已知函数
.
(1)若
有3个零点,求a的取值范围;
(2)若
,
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3315173cad088fff5ebfe827b839ebee.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/936654c9cbaf277ffaf95a248ad1443d.png)
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解题方法
2 . 已知抛物线
,
为E上一点,P到E的焦点F的距离为5.
(1)求E的标准方程;
(2)设O为坐标原点,A,B为抛物线E上异于P的两点,且满足
.
(ⅰ)判断直线
是否过定点,若过定点,求出定点的坐标;若不过定点,请说明理由;
(ⅱ)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b527ec9f92467b8f24554a2a67ee987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a4e5ecfd084f909f441631462d75e13.png)
(1)求E的标准方程;
(2)设O为坐标原点,A,B为抛物线E上异于P的两点,且满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
(ⅰ)判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7dbc5f85292795579155dfd3baff0e.png)
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3 . 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
名校
4 . 已知函数
.
(1)求函数
的单调区间;
(2)若方程
的两根互为相反数.
①求实数
的值;
②若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5666e2041f0ca951e9cdd53fd7c88a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/022a375072c113ab3efaa8756251e403.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fee4e4ef6bc78dc8e69bf99c2807b7b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ba4e9c6b559968f2f637043af15817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8c484b0027dcd3111ea15aa9717c73.png)
您最近一年使用:0次
2023-11-26更新
|
469次组卷
|
3卷引用:四川省眉山市仁寿第一中学校南校区2024届高三上学期12月月考数学(理)试题
名校
解题方法
5 . 设
,
.
(1)当
时,求函数
的最小值;
(2)当
时,证明:
;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f77c845f50ab193151748aa67ea2b01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eee5a36044656b35fb431b609cde6d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c67a7e28dba059006021a2e2105f538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fad32850af0f1dd8b57e9ad01868f7f.png)
您最近一年使用:0次
2023-11-15更新
|
1839次组卷
|
7卷引用:四川省内江市威远中学校2023-2024学年高二下学期第二次月考数学试题
四川省内江市威远中学校2023-2024学年高二下学期第二次月考数学试题广东省四校(佛山一中、广州六中、金山中学、中山一中)2024届高三上学期11月联考数学试题(已下线)专题07 函数与导数常考压轴解答题(12大核心考点)(讲义)(已下线)导数专题:导数与不等式成立问题(6大题型)-2023-2024学年高二数学题型分类归纳讲与练(人教A版2019选择性必修第二册)2024年新高考Ⅰ卷浙大优学靶向精准模拟数学试题(八)湖南省长沙市长郡中学2024届高考适应考试(四)数学试题(已下线)专题03 利用导数证明不等式(四大题型)
6 . 已知椭圆
过点
,离心率
.
(1)求椭圆C的方程;
(2)设过点A的直线l交椭圆C于另一点B,若△OAB的面积为2,其中O为坐标原点,求直线l的方程;
(3)设过点
的直线l交椭圆C于点M,N,直线MA,NA分别交直线
于点P,Q.求证:线段PQ的中点为定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfaba0309c471a4246ca3254a3cdaf17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de85df85401e7e8da683ea4a784963c.png)
(1)求椭圆C的方程;
(2)设过点A的直线l交椭圆C于另一点B,若△OAB的面积为2,其中O为坐标原点,求直线l的方程;
(3)设过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17905988258f795b4eb172b19ad2d7fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a089c207e39a24d0d82aa853ac2bbb8c.png)
您最近一年使用:0次
2023-10-26更新
|
1195次组卷
|
5卷引用:四川省成都市石室阳安中学2023-2024学年高三上学期11月月考文科数学试题
名校
解题方法
7 . 已知函数
,
(1)当
,
和
有相同的最小值,求
的值;
(2)若
有两个零点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c66c32cf0584b8990612638fa50dd0.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b3d2315608819f8af9eeef4d3d90e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4f313e85b97bda207222fa6e82b463.png)
您最近一年使用:0次
2023-10-21更新
|
550次组卷
|
6卷引用:四川省达州市开江县开江中学2022-2023学年高三上学期入学考试数学(理)试题
四川省达州市开江县开江中学2022-2023学年高三上学期入学考试数学(理)试题四川省成都市树德中学2022-2023学年高三上学期第一次月考模拟(理科)数学试题四川省成都市树德中学2022-2023学年高三上学期第一次月考模拟(文科)数学试题西南名校联盟2022-2023学年高三上学期11月月考数学(理)试题(已下线)专题突破卷08 极值点偏移(已下线)重难点突破05 极值点偏移问题与拐点偏移问题(七大题型)-1
解题方法
8 . 已知函数
.
(1)若
,求
的取值范围;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad04a81b8c310f929f1d19088501a171.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d215114ca627effb31bef397b433cb83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2846a7bd7282d04458bfa921e03834e.png)
您最近一年使用:0次
解题方法
9 . 已知椭圆
:
(
)的左,右焦点为
,
,离心率为
,点
是椭圆
上不同于顶点的任意一点,射线
,
分别与椭圆
交于点
,
,
的周长为8.
(1)求椭圆
的标准方程;
(2)求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.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/8144da365530cc0560de2d4946c96a1d.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5a29b7ed0c415987dfc800850231a2.png)
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解题方法
10 . 已知函数
.
(1)证明:
;
(2)证明:函数
(
)在
上有唯一零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c27d95d8b2a57d0937c0cf6609cdfc20.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eee1b2e5b22424039fc42c00bef10db.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5afa1641e2400c50cea4b5a48b6c87ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01dc2d99655cf7598837cb0886166ed.png)
您最近一年使用:0次