已知函数
.
(1)求
的最大值;
(2)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1eeb7f67d1e4d55332e9c0dad0385da.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f13199dd6a0a6819ff3b7c2945a8e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ffd5f7e23b05c8009a5043ec897d648.png)
22-23高三上·四川·阶段练习 查看更多[4]
(已下线)四川省金太阳大联考2022-2023学年高三上学期10月联考数学(文)试题河南省名校联盟2022-2023学年高三上学期10月联考文科数学试题四川省遂宁中学校2022-2023学年高三上学期10月月考数学(文)试题甘肃省兰州市第二中学2022-2023学年高三上学期第二次月考文科数学试题
更新时间:2022-10-14 23:27:33
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【推荐1】已知函数
.
(1)求函数
的单调区间;
(2)已知函数
,若
是
的极大值点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0bcf5d60cc4456a6ddfe97de03ebbb0.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b524931613557ef772d8236d08d93c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a504eeab638b070fec5dee1856a6d9.png)
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【推荐2】已知椭圆C:
的离心率为
,点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84d316b10430afac5b0c065f31e1b2c.png)
分别是椭圆
的左,右焦点,以原点为圆心,椭圆
的短半轴为半径的圆与直线
相切.
(1)求椭圆
的方程;
(2)若过点
的直线l与椭圆
相交于
两点,求使
面积最大时直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84d316b10430afac5b0c065f31e1b2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38f9106cef0b638e62c90afc1c523cd.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
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【推荐3】1.福建省平潭综合实验区澳前68小镇的猴研岛,是祖国大陆距宝岛台湾最近的地方,直线距离仅68海里.为了更好地完善硬件设施提升小镇旅游面貌,68小镇管理处在水泥路边安装路灯,路灯的设计如图所示,
为地面,
、
为路灯灯杆,
,
,在
处安装路灯,路灯采用可旋转灯口方向的锥形灯罩,灯罩的照明张角
,已知
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01dcbd171693a47c5b932a5e84de10c6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/e382244f-f498-4708-a8e4-0310965a54f4.png?resizew=367)
(1)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf1967597e36c07196c680a6d42a9a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01dcbd171693a47c5b932a5e84de10c6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/e382244f-f498-4708-a8e4-0310965a54f4.png?resizew=367)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d57678b93f1dcb18d4cbb33ff70bce0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/920fb585232679dfac915b1219033af5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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【推荐1】已知函数
.
(1)若
在定义域内单调递增,求实数
的取值范围;
(2)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966da351cff7ed02258f0afb093dfdda.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d033a7a72c41841878fa6257780cc188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c674dddbbf46ec4ddaa1f2120b089663.png)
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名校
【推荐2】已知函数
,
.
(1)当
时,求
的极大值;
(2)求
的单调区间;
(3)当
时,设函数
,若实数
满足:
且
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ff2b857daedb274858399741a4ccb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7516301bc2e2371e455ba1b1474a8a04.png)
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