名校
解题方法
1 . 若存在实数
,对任意实数
,使得不等式
恒成立,则实数m的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c974dafd7f992c28eb67787daa6387b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e94436a5e423e75196970680e2094ad.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-15更新
|
1442次组卷
|
6卷引用:上海市崇明区2024届高三一模数学试题
上海市崇明区2024届高三一模数学试题安徽省卓越县中联盟2024届高三上学期第三次质量检测数学试题广东省广州市广东实验中学2024届高三上学期大湾区数学冲刺卷(一)(已下线)专题09 导数(三大类型题)15区新题速递(已下线)专题03 函数(三大类型题)15区新题速递(已下线)压轴小题12 一组不等式的恒成立问题
2 . 已知抛物线C:
(
)的准线方程为
.动点P在
上,过P作抛物线C的两条切线,切点为M,N.
(1)求抛物线C的方程:
(2)当
面积的最大值时,求点P的坐标.(O为坐标原点)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b35f0b940c8422ef47edc3b7ce55e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70531883c3537a05c0047adda86b4020.png)
(1)求抛物线C的方程:
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
您最近一年使用:0次
3 . 给定素数
,定义集合
.对于
,
,定义
如下:当
时
;当
时
.对于
的一个子集
,定义
.若集合
满足
且对任意
有
则称集合
为好集合.求最大正整数
,使得可以找到
个互不相同的好集合
,
,
,
,满足
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20dd7cdef44777d41d74d699ffdd746d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf98a71fd95ad5e8fc967e6657f24a20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe1e80f50c9dd61376740023ed35344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e596ab8948a8ea4a590268681ae2b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c46d1a90bc64c45cd13974eefb0dbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d9db389d4841fc977f20f7d33520270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37313b684f4ea9714c3f6df0053c603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0fb864828d5a10dd99566d29eda3b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec588a1061937a72a456e2fa57d78cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5097380cbd3805cc9598de5b166549cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44073b5701bb43060b3248a8145c67b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c633305229937a241ed6b6a4c3b032d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0dbb44d7459e2c69c046775664c21d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed928e013218b7e12883775aa0d0a71e.png)
您最近一年使用:0次
2023-12-14更新
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385次组卷
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3卷引用:2023年第39届全国中学生冬令营(CMO)数学试题
4 . 若存在常数
,使得数列
满足
(
,
),则称数列
为“
数列”.
(1)判断数列:1,2,3,8,49是否为“
数列”,并说明理由;
(2)若数列
是首项为
的“
数列”,数列
是等比数列,且
与
满足
,求
的值和数列
的通项公式;
(3)若数列
是“
数列”,
为数列
的前
项和,
,
,试比较
与
的大小,并证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2108ef893c3ef1f8599a4b8ba7083e8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e167b43045b3297248e334c41c621b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4613271f782a90ab580131d09d03d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e91406484c332ac8fc96a54c7e187b.png)
(1)判断数列:1,2,3,8,49是否为“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3331574262d23e775c78e1806dd38a.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e91406484c332ac8fc96a54c7e187b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e909fec4d31cce0e352edd6186d7c235.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e91406484c332ac8fc96a54c7e187b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](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/8141d87fb02b08c88b0c9f27f839a7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc4a42272d8dfd41ed6f6594f8c82c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07812c89c11b5cb96c2eb573e681cbd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1f6e5fb3d02ed5fe61763857e80c43.png)
您最近一年使用:0次
2023-12-14更新
|
1319次组卷
|
10卷引用:上海市普陀区2024届高考一模数学试题
上海市普陀区2024届高考一模数学试题2024届高三新改革数学模拟预测训练二(九省联考题型)(已下线)2024年高考数学全真模拟卷05(新题型地区专用)(已下线)黄金卷05(已下线)新高考预测卷(2024新试卷结构)(已下线)微考点4-1 新高考新试卷结构压轴题新定义数列试题分类汇编湖南省长沙市四县区2024届高三下学期3月调研考试数学试卷(已下线)专题05 数列(四大类型题)15区新题速递(已下线)专题09 导数(三大类型题)15区新题速递(已下线)湖南省长沙市四县区2024届高三下学期3月调研考试数学试题变式题16-19
解题方法
5 . 已知三条直线
(
)分别与抛物线
交于点
、
,
为
轴上一定点,且
,记点
到直线
的距离为
,△
的面积为
.
(1)若直线
的倾斜角为
,且过抛物线
的焦点
,求直线
的方程;
(2)若
,且
,证明:直线
过定点;
(3)当
时,是否存在点
,使得
,
,
成等比数列,
,
,
也成等比数列?若存在,请求出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88036e3c1badc0d0b3f9145cd52d1c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79059a3366ed1b339ba1317ce8a1e7f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146294fdb064581da7987fdca20ee912.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e819b87f90651d89fcd258c276294e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc5c895153932c3e827a464664cef90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439e95540157803d4ac3cf61a49f50a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f1254f1ff64e7fc1918b84e75dceaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/468edcfef1bcd7e74491a57a70c1bcb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50a4b1e4f8b1d044300df7ef8205c31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb4be53c952d1edc5ecba3125c1111a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e9bb415ebf91617fe843b83d0a140ea.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a251fb581ee87c54da42d43dc0f8fb68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7803037f78d54221e0bd45a2bff37c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.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/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d0252c1b2f7d2a84b5c985d19d547.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
您最近一年使用:0次
解题方法
6 . 设函数,
(其中常数
,
),无穷数列
满足:首项
,
.
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770de2dc30a92008fe24dcd40df911ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36de978f04fe3193cc149cbdfeeeaa90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
名校
7 . 已知数列
的通项公式为
,其前
项和为
.对任意正整数
,设
,其中
,记
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faff503e73e3cfff9e02cf20c792e4f2.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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fb751c3fe573652ec72805eda1eccf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/572366af4b70473246d02890f08e5bf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544a4fa38ea56b322abb20155350cfe6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-12-13更新
|
614次组卷
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3卷引用:河南省部分重点中学2024届高三上学期阶段性测试(四)数学试题
8 . 已知点
在抛物线
:
上,点F为
的焦点,且
.过点F的直线l与
及圆
依次相交于点A,B,C,D,如图.
的方程及点M的坐标;
(2)证明:
为定值;
(3)过A,B两点分别作
的切线
,
,且
与
相交于点P,求
与
的面积之和的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c26e2b0282402f4c622bb7b36a1a637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ea1ce7588f88b39746159233be9cd82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16e0a493a582d7a2c69308f411c677b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9299cbb1124e6984eebd37894187f5ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f7058b04346688b7635310597e6ece.png)
(3)过A,B两点分别作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147de24f071e316b68fd2e78e3c84545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7f9f7952c4be18cb73393047c2ad75.png)
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2023-12-12更新
|
726次组卷
|
3卷引用:上海市虹口区2024届高三上学期期终学生学习能力诊断测试数学试题
名校
解题方法
9 . 设
且
,n为正整数,集合
.有以下两个命题:①对任意a,存在n,使得集合S中至少有2个元素;②若存在两个n,使得S中只有1个元素,则
,那么( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88289b83c7a199bc9763152a93a2865d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67aad93107e85313c581aa0efce8cb1f.png)
A.①是真命题,②是假命题 | B.①是假命题,②是真命题 |
C.①、②都是假命题 | D.①、②都是真命题 |
您最近一年使用:0次
名校
10 . 已知
是无穷数列,
,
,且对于
中任意两项
,
,在
中都存在一项
,使得
.
(1)若
,
,求
;
(2)若
,求证:数列
中有无穷多项为0;
(3)若
,求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fab51121848ce166035ceab6f4e00b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a55ef34345210312db273ab4981c40f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0616dca5cf0229b9f801365cc2bcfff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba50a82a53f0e597c096ccf5746f1b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53abaaac2e62f510d996e6db22aefe7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23725094c363fd158166a8698971694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657435e1fda84118e7f63c97505c8b75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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