名校
1 . 已知椭圆
的一个焦点为
,其左顶点
在圆
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c7b07ace87ed58fdc1f1bc78a04aeda.png)
![](https://img.xkw.com/dksih/QBM/2017/10/10/1792125761519616/1792376846278656/STEM/100ccf2a5793428f8a9282606fb1c363.png?resizew=16)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4133318272b4088b0b1b043d58b771.png)
(1)求椭圆的方程;
(2)直线交椭圆
于
两点,设点
关于
轴的对称点为
(点
与点
不重合),证明:直线
过x轴上的一定点,并求出定点坐标.
您最近一年使用:0次
2017-10-10更新
|
1441次组卷
|
2卷引用:辽宁省大连市第八中学2017-2018学年高二上学期期中考试数学(理)试题
解题方法
2 . 已知函数
.
(1)若
在区间
上单调递增,求实数a的取值范围;
(2)设
的导数
的图象为曲线C,曲线C上的不同两点
,
所在直线的斜率为k ,求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c132cdacc9d7127f8799218af34868a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44284ff1ea50429a0610e13363be6080.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f148f3e5650bb90bf0d7b28f0c83b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db94a845b19c6ee907a2e566cc4da9f.png)
您最近一年使用:0次
名校
3 . 已知
在点
处的切线方程为
.
(1)求
的值及
在
上的单调区间;
(2)若
,且
,求证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7eb66b9f74d708212f1224763a57b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7213895114a712353de4ca8b0a0592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86bebdf5931efbdc627baa52f97392e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1613d377a07850c72cbec354b7a3000f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da026d9c6cad68225be7b5e5136c40e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72778cd3af72844a0f5a4a8157117d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c158a550aaa60c8a2282649dae147e1d.png)
您最近一年使用:0次
2017-06-12更新
|
1683次组卷
|
2卷引用:东北师大附中、哈尔滨师大附中、辽宁省实验中学2017届高三下学期第四次联合模拟考试数学(理)试题
4 . 已知数列
满足
,则数列
满足对任意的
,都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127ee49d0339e904be557f482967625b.png)
,则数列
的前
项和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7978d7bd6f6caf9ac9837ffce5f89654.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e4b5779873cb3f4366dbfdb983dec81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52c9237cb0b4acc568d4afb12997186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2aa78c96db411c9e1e939ae16de78d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127ee49d0339e904be557f482967625b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381776b0b7b0ce3d991146d2b7f27c78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52c9237cb0b4acc568d4afb12997186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7978d7bd6f6caf9ac9837ffce5f89654.png)
您最近一年使用:0次
2017-06-12更新
|
1941次组卷
|
4卷引用:东北师大附中、哈尔滨师大附中、辽宁省实验中学2017届高三下学期第四次联合模拟考试数学(理)试题
东北师大附中、哈尔滨师大附中、辽宁省实验中学2017届高三下学期第四次联合模拟考试数学(理)试题重庆市实验中学2022届高三上学期11月月考数学试题重庆市渝中巴蜀中学校2020届高三下学期4月月考理科数学试题(已下线)专题11 数列前n项和的求法 微点10 数列前n项和的求法综合训练
解题方法
5 . 设
且
,若
,则下列结论中一定正确的个数是
①
;②
;③
;④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef64f0645fbce529e7b79462cc39dae0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da43823938ae63ea6a221cac829ab1f.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7580a4c6a36b6f94d62fb68b321e865e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f953f55cabf620c0d30b34931a48eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b681650b6f0eafc448320a1e1047dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef64f0645fbce529e7b79462cc39dae0.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
解题方法
6 . 已知椭圆的两个焦点为
,
是椭圆上一点,若
,
.
(1)求椭圆的方程;
(2)直线
过右焦点
(不与
轴重合)且与椭圆相交于不同的两点
,在
轴上是否存在一个定点
,使得
的值为定值?若存在,写出
点的坐标(不必求出定值);若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0120663dcd4e38ad4b6b3e9cd4dc4e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19eef11535649c4ecd9ce1cd81a10b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70129ca7934f02b8236ad621bbbe906b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aa543ae6e4e40e798db8ac127b99535.png)
(1)求椭圆的方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19eef11535649c4ecd9ce1cd81a10b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5261223abd938fc3d32e74c92845ce3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a33e5d0dbdd0f15854f0d7dd8b53058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
解题方法
7 . 已知函数
,
为自然对数的底数.
(1)求曲线
在
处的切线方程;
(2)关于
的不等式
在
恒成立,求实数
的取值范围;
(3)关于
的方程
有两个实根
,
,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ee1af372a09bd39ea3b2ee2eb2e836.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7ed99a74e126a05cb520f19c094020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54f3039d5087cd8acb78d6ddad7a18a0.png)
(2)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b939128b0bfbeca224d5234eb58ce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.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/e2ee1af372a09bd39ea3b2ee2eb2e836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a769110d50bfbe8017360e3425e875ff.png)
您最近一年使用:0次
名校
8 . 已知过抛物线
的焦点
的直线与抛物线交于
两点,且
,抛物线的准线
与
轴交于点
,
于点
,若四边形
的面积为
,则准线
的方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb398137779190b35492d9f06d5fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd68a9b8708b781279d9f526f230fffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca717072d24c0e6fda2bb0d9c19b406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d878b6631b8f1f9368f6c6217167380c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7dc603317eb90974c75efec9f02b1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-04-18更新
|
2163次组卷
|
10卷引用:辽宁省沈阳市四校协作体2017-2018学年高三联合考试理科数学试题
辽宁省沈阳市四校协作体2017-2018学年高三联合考试理科数学试题2017届河北省石家庄市高三数学一模考试(理科)试卷河北省武邑中学2017届高三下学期二模考试数学(文)试题河北省定州中学2017届高三下学期第二次月考(4月)数学试题【全国校级联考】]安徽省定远重点中学2018届高三5月高考模拟考试数学(理)试题【全国校级联考】广东省汕头市潮南区2018届高考(5月)冲刺数学(理)试题宁夏六盘山高级中学2019届高三下学期第二次模拟考试数学(文)试题四川省三台中学实验学校2019-2020学年高二上学期期末适应性考试数学(理)试题(已下线)2022年高考考前20天终极冲刺攻略(三)【理科数学】(5月29日)湖北省襄阳市2018-2019学年高二下学期期末数学(文)试题
名校
9 . 已知定义在
上的函数
,当
时,不等式
恒成立,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2473bdb997ec5e89b03d0fd7342fdbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e8d8441014892f9ad3dbaad3f89774e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2e32a337c10ab143be84e611c84b20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-04-06更新
|
2566次组卷
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5卷引用:2017届辽宁省大连市高三第一次模拟考试数学理试卷
2017届辽宁省大连市高三第一次模拟考试数学理试卷2017届辽宁省大连市高三第一次模拟考试数学文试卷河北省衡水中学2018届高三数学(理科)三轮复习系列七-出神入化4(已下线)专题2-3 函数性质3:幂指对函数图像与零点-2广东省普宁市普师高级中学2023届高三二模数学试题
名校
10 . 已知函数
.
(1)求函数
的图象在点
处的切线方程;
(2)当
时,求证:
;
(3)若
对任意的
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/649596be363632149d08396a9a80e8cd.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c6b6a11760d0724b0b60e55970e229.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0537af587b482ab6eea06ee944ae56f3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085f3f7051d969af530a058862f678a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2017-03-27更新
|
1211次组卷
|
3卷引用:辽宁省葫芦岛市2016-2017学年高二下学期期末质量监测数学(文)试题