1 . 已知各项均不为零的数列
的前
项和为
,
,
,
,且
,则
的最大值等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe7bdaaf8b0adf10bf2ef6c1255b1dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7fdd606e80f1f7c0a559d259d381c6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cd5709eb825305a9809e740ba2bb317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5b083c3cf55f65f882796e960f4c3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08c9965a04c2a6de04e949a15762f372.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数
,若方程
有四个不同的零点,它们从小到大依次记为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a097d20333ae9f98651297593da83e0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aebb79aa80c570391311dde442cfa9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ccd22fd0ca1a8e1468329284f91b6a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-04-24更新
|
1178次组卷
|
8卷引用:新疆维吾尔自治区阿克苏地区库车市第二中学2022-2023学年高一下学期3月月考数学试题
新疆维吾尔自治区阿克苏地区库车市第二中学2022-2023学年高一下学期3月月考数学试题陕西省西安市铁一中学2022-2023学年高一下学期期中数学试题河北省石家庄市二十二中2022-2023学年高一下学期开学考试数学试题广东省揭阳市普宁国贤学校2023届高三下学期4月模拟数学试题(已下线)专题4.9 指数函数与对数函数全章综合测试卷(提高篇)-举一反三系列湖北省武汉市第六中学2023-2024学年高一上学期12月月考数学试题湖北省咸宁市崇阳县第二高级中学2023-2024学年高一上学期12月摸底考试数学试题(已下线)第四章 指数函数与对数函数-【优化数学】单元测试基础卷(人教A版2019)
名校
解题方法
3 . 已知平面向量
,
,
,满足
,
,若对于任意实数x,都有
成立,且
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ae0d7b3266f32b6a916b6237b6b838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d59b58c8712cbd156476c12c049324dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1465b9eea7a8cb4570b48cf321910c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f48968b0963761a1b5ba5c8e5d3db2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e273de83d7f518df456d6f6f568ad4e4.png)
A.2 | B.4 | C.6 | D.8 |
您最近一年使用:0次
2023-04-22更新
|
1682次组卷
|
5卷引用:新疆维吾尔自治区部分学校2023届高三二模数学(理)试题
新疆维吾尔自治区部分学校2023届高三二模数学(理)试题福建省厦门第一中学海沧校区2022-2023学年高一下学期6月月考数学试题福建省厦门双十中学2024届高三上学期11月期中考试数学试题(已下线)专题01 平面向量压轴题(2)-【常考压轴题】(已下线)压轴题06向量、复数压轴题16题型汇总-2
4 . 已知函数
,其中
且
,若函数
图象上存在关于原点对称的点仅有两对,则实数a的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f0ba3aeb142d868d4436ddf5b125e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
5 . 对于函数
和
,设
,
,若存在m,n,使得
,则称
和
互为“零点关联函数”,若函数
与
互为“零点关联函数”,则实数a的最小值是______ .
![](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/9c6d9297f968746043ea3a18c2674074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c646c8703395cf86ce6cd928457c2bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95d329c460f6e152a76de7b9549bc147.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/b626f9a54e5ab6d0ce3e60b38d70003a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e97e0da487ce6b29300e15f7ef52b66.png)
您最近一年使用:0次
2023-04-22更新
|
454次组卷
|
3卷引用:新疆维吾尔自治区部分学校2023届高三二模数学(理)试题
解题方法
6 . 已知函数
,
,其中
为自然对数的底数.
(1)若
有两个极值点,求
的取值范围;
(2)记
有两个极值点为
、
,试证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/732f6cdb4e530b09885eb10920e5bda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b92a222c35021168dd2a750a27203c1a.png)
您最近一年使用:0次
解题方法
7 . 已知
,
是椭圆
的左、右焦点,点
是
上一点,
的中点在
轴上,
为坐标原点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/22/a5e23d32-c4f5-4b67-98da-9041b21f6281.png?resizew=189)
(1)求椭圆
的方程;
(2)过点
任意作两条倾斜角互补的直线交椭圆于B,C两点,设直线BC的斜率为
,证明:
为定值,并求
的值.
![](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/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e90064d012356de1877aa697cd6d6ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/22/a5e23d32-c4f5-4b67-98da-9041b21f6281.png?resizew=189)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e90064d012356de1877aa697cd6d6ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
8 . 已知双曲线
的左、右焦点分别为
,
,P是C在第一象限上的一点,且直线
的斜率为
,点B为
的内心,直线PB交x轴于点A,且
,则双曲线C的渐近线方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.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/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640140654b6ea480d761858fa00625cd.png)
您最近一年使用:0次
2023-04-18更新
|
711次组卷
|
5卷引用:新疆维吾尔自治区乌鲁木齐市第二十三中学2024届高三上学期1月月考数学试题
名校
解题方法
9 . 设
,
分别是椭圆
:
的左、右焦点,
是
上一点,
与
轴垂直.直线
与
的另一个交点为
,且直线
的斜率为
.
(1)求椭圆
的离心率;
(2)设
是椭圆
的上顶点,直线
:
与椭圆
交于两个不同点
、
,直线
与
轴交于点
,直线
与
轴交于点
.若
,求证:直线
经过定点.
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183b6a0cef4256c9696a5bca31053da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b67528f875a6d4bac8bbf784f7b66a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5040d31e784398842b04ed7dd0aacc10.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45059124ddf15456b0f3fd8f772a24d1.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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd5ee115bc6319d776229f22927dfdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
名校
解题方法
10 . 已知函数
.
(1)若函数
存在零点,求实数
的最大值;
(2)当
时,函数
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a78f5bce61e2ff49633e7f32563d263.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27487d40b525c0727313b7842aee124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-04-16更新
|
768次组卷
|
5卷引用:新疆维吾尔自治区2023届高三一模数学(文)试题