1 . 已知
,a为函数
的极值点,直线l过点
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)求
的解析式及单调区间:
(2)证明:直线l与曲线
交于另一点C:
(3)若
,求n.(参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/564a3336ddeba347978fee32ffb16631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc0021f960dba2b8860d09d9bf26872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad344f3b6676f6e821cb687ba522268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)证明:直线l与曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/978068ab8189f54a3365be8d73280f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cffb0685e90e8d603813673a8f0801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/513da43c5b2cbc26d9d53ab32274d3f7.png)
您最近一年使用:0次
名校
解题方法
2 . 在平面直角坐标系xOy中,已知椭圆Γ:
的离心率为
,直线l与Γ相切,与圆O:
相交于A,B两点.当l垂直于x轴时,
.
(1)求Γ的方程;
(2)对于给定的点集M,N,若M中的每个点在N中都存在距离最小的点,且所有最小距离的最大值存在,则记此最大值为
.
(ⅰ)若M,N分别为线段AB与圆O上任意一点,P为圆O上一点,当
的面积最大时,求
;
(ⅱ)若
,
均存在,记两者中的较大者为
.已知
,
,
均存在,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c42aaceb687ffc763bdc5af3463c051a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/631586067d81160678c2ddea983e62de.png)
(1)求Γ的方程;
(2)对于给定的点集M,N,若M中的每个点在N中都存在距离最小的点,且所有最小距离的最大值存在,则记此最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f513553d63e9c87a70dd6aa57f97b1.png)
(ⅰ)若M,N分别为线段AB与圆O上任意一点,P为圆O上一点,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f513553d63e9c87a70dd6aa57f97b1.png)
(ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f513553d63e9c87a70dd6aa57f97b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8207405e0cca2ccbd7643671bee4e40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a34aca6d603ad0587bd4e3f1a0b01d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad8c255f18185a9b643c70edf9b00b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d89815ff222757cbfc9b0ae2bf096a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed107042c263ccf28435954b8a02082.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e99cb8baa4733c0d58735590ddaf51.png)
您最近一年使用:0次
2024-03-21更新
|
2797次组卷
|
10卷引用:天津市南开中学2023-2024学年高三下学期第五次月考数学试题
天津市南开中学2023-2024学年高三下学期第五次月考数学试题江苏省南通市2024届高三第二次调研测试数学试题江苏省扬州市2024届高三第二次调研测试数学试题江苏省泰州市2024届高三第二次调研测试数学试题(已下线)模块4 二模重组卷 第2套 全真模拟卷(已下线)江苏省南通市2024届高三第二次调研测试数学试题变式题 16-19(已下线)江苏省泰州市2024届高三第二次调研测试数学试题变式题16-19(已下线)高三数学考前押题卷3(已下线)专题8 考前押题大猜想36-40(已下线)压轴题02圆锥曲线压轴题17题型汇总-3
名校
3 . 已知函数
,
(
为自然对数的底数)
(1)当
时,求
的单调区间;
(2)
时,若函数
与
的图象有且仅有一个公共点.
(i)求实数
的集合;
(ii)设经过点
有且仅有3条直线与函数
的图象相切,求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3392ab5afdbd80d316d4fd003920659a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5e80cdc7476f04bcc62813fa187446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
(i)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ii)设经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f00fdb0b1dfb21a2e192990b79be37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cdfaf0771d0dbe55309ad4640b143f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bb2da696e961d4e7c289691aa4ce9c.png)
您最近一年使用:0次
4 . 已知
是公比为q的等比数列.对于给定的
,设
是首项为
,公差为
的等差数列
,记
的第i项为
.若
,且
.
(1)求
的通项公式;
(2)求
;
(3)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecea6aa3b0b367dbd8d0e38c65829c33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac24dd2ff15d115696e8a9f8dad264f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f255d0395fba51ca2d44293cca42e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c66a0c50c32fba396a322f0ddbeda4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac24dd2ff15d115696e8a9f8dad264f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f686d89f95d2dc846e53eab5ca99ddde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33c0acaa66514a4f1493b158ebd09e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2608df648efc5364a2dc2c67cfe14cd9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f27dd9877202542cc6975d5a4d78724a.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f88b0922dc08ae6398dfc0296037c759.png)
您最近一年使用:0次
2023-05-20更新
|
1166次组卷
|
3卷引用:天津市南开中学2023-2024学年高三下学期第五次月考数学试题
名校
5 . 已知
,设函数
的表达式为
(其中
)
(1)设
,
,当
时,求x的取值范围;
(2)设
,
,集合
,记
,若
在D上为严格增函数且对D上的任意两个变量s,t,均有
成立,求c的取值范围;
(3)当
,
,
时,记
,其中n为正整数.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d68155558673dee3c3b339a73d752097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e1d58efba7354ff2ccb96922732094.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0248255c35db564b386e4a997f822a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3e852eebd74ce9620a6baaef6d35fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d9a4cae3158b96893800ddc6ebbc76e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/610a635570c8e84423dbf0f6a566c138.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a915c1a8a9304aeb307d130faaeb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22f37cf574ebef90d4e1204db94bcbaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7203bef757822b5d482430f8bf80dea7.png)
您最近一年使用:0次
2023-04-13更新
|
1546次组卷
|
5卷引用:天津市南开中学2022-2023学年高二下学期期末数学试题
天津市南开中学2022-2023学年高二下学期期末数学试题上海市普陀区2023届高三二模数学试题天津市耀华中学2023届高三二模数学试题(已下线)重难点04导数的应用六种解法(1)(已下线)专题04 函数导数综合应用(四大题型)-【好题汇编】备战2023-2024学年高二数学下学期期末真题分类汇编(天津专用)
6 . (1)如图,平行四边形
中,对角线
与
交于
点,
为平面内任意一点. 求证:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/22/322ac58b-6ace-4b65-b19a-550448e8f281.png?resizew=207)
(ⅰ)
;
(ⅱ)
;
(2)矩形
中,
为平面内任意一点.求证:
;
(3)在平面上,
,
,
.若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/22/322ac58b-6ace-4b65-b19a-550448e8f281.png?resizew=207)
(ⅰ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f7667168e00e009966f8772298b797.png)
(ⅱ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c58014648a1d8377acfdf244ee07e400.png)
(2)矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8ea92bb22eff6ace44566715890c99.png)
(3)在平面上,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a20f65d50ced816b828d472d9f0ac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d8db0b0d865a43ff70c7dbbd7d2b978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b15fdbdcfd47d81f23245bd02d9346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/779d07a49f3439c69cb9e76bad784fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e578668ad5d0ad2b240ac6906c66f2c.png)
您最近一年使用:0次
名校
7 . 已知椭圆
中心在原点,右焦点
,离心率为
.
(1)求椭圆
的标准方程;
(2)若椭圆左右顶点分别为
和
,
为椭圆位于第二象限的一点,在
轴上存在一点
,满足
,设
和
的面积分别为
和
,当
时,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be92f0e0012a7696c78e3e00513edefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若椭圆左右顶点分别为
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77015af879889ba7a37fcd39d1a89ea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50afa1c347f3ba8a299e6087c421a162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a448e3f559673a699896a665faac49d2.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/279e4bfdfc398ef4ac7eed1e00ee15a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
您最近一年使用:0次
名校
解题方法
8 . 为方便师生行动,我校正实施翔宇楼电梯加装工程.我们借此构造了以下模型:已知正四棱柱
,它抽象自翔宇楼南侧楼心花园所占据的空间,设
,
,O为底面ABCD的中心,正四棱柱
与正四棱柱
分别代表电梯井与电梯厢,设
,M为棱
的中点,N,K分别为棱
,
上的点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/0b462e61-384a-4f3f-84fa-ed7f0a03c599.png?resizew=243)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
平面
;
(2)求直线
与平面
所成角的正弦值;
(3)“你站在桥上看风景,看风景的人在楼上看你.明月装饰了你的窗子,你装饰了别人的梦.”卞之琳诗句中的情景其实正在我们的生活中反复上演,上官琐艾同学站在楼心花园的中心(O点),她正目送着倚立在电梯厢一角的欧阳南德同学,假定上官同学的目光聚焦于棱OO2的中点I,此时,电梯厢中欧阳同学的目光正徘徊在位于N点的数学办公室与位于K点的数学实验室,当电梯厢向上启动时,在这时空里便诞生了由点O与移动着的平面INK所勾勒的动人风景.现在,请作为“正在看风景的人”的你完成以下问题:当电梯厢自底部(平面OECF与平面ABCD重合)运行至顶端(平面
与平面
重合)的过程中,点O到平面INK距离的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1300c053fde2be0861a4d128645dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eaba7d7d6f2f3d6d4a2fe85d3c427f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38158de5a7c1ae8bc7a8ec9e1b90cf15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ca71c2f5005f86b706a3fc8bae97017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1dd2d3ebf5f4e9128f5a2f18018866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64fb289ca6025309e93e3c20ac0f04b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e023f80e4146cf44fd01935d0680f3e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5594a4b5f0e842213df907dbb25c25cb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/0b462e61-384a-4f3f-84fa-ed7f0a03c599.png?resizew=243)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f3477c7e6f5e94eac65dda58544d41.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc526324e78e4d9226d1b537f27845a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f3477c7e6f5e94eac65dda58544d41.png)
(3)“你站在桥上看风景,看风景的人在楼上看你.明月装饰了你的窗子,你装饰了别人的梦.”卞之琳诗句中的情景其实正在我们的生活中反复上演,上官琐艾同学站在楼心花园的中心(O点),她正目送着倚立在电梯厢一角的欧阳南德同学,假定上官同学的目光聚焦于棱OO2的中点I,此时,电梯厢中欧阳同学的目光正徘徊在位于N点的数学办公室与位于K点的数学实验室,当电梯厢向上启动时,在这时空里便诞生了由点O与移动着的平面INK所勾勒的动人风景.现在,请作为“正在看风景的人”的你完成以下问题:当电梯厢自底部(平面OECF与平面ABCD重合)运行至顶端(平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9f13896a66e307f01afe9ff43a82f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
您最近一年使用:0次
2022-11-06更新
|
357次组卷
|
4卷引用:天津市南开中学2022-2023学年高二上学期阶段性质量检测(一)数学试题
天津市南开中学2022-2023学年高二上学期阶段性质量检测(一)数学试题1.4空间向量的应用(已下线)期中真题必刷压轴60题(18个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)(已下线)第六章 突破立体几何创新问题 专题二 融合科技、社会热点 微点3 融合科技、社会热点等现代文化的立体几何和问题综合训练【培优版】
名校
9 . 设函数
,
,
.
(1)求函数
的单调区间和极值;
(2)若关于
的不等式
的解集中有且只有两个整数,求实数
的取值范围;
(3)方程
在的实根为
,令
,若存在
,使得
,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427c0e1338814bb5431c3ab7e2d3b9d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8025bceccbc5be142baecfaacfb44626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0769a5f9d25f1c93c4d37b0e0af9e2.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eeb41f0d781816876cc3264a0fc79b3.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/633ef53a95a7cf276cb6c9021d4ffcbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f76230e463a5ed01ea817c66d194807d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41332c99ca8b3c902f94759e1be10188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9459b828d91efd08ca3b18e5518c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e2551c314c6ea951fca591bf87a6f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0c66a634157c181156a0ead54d9fc0.png)
您最近一年使用:0次
2022-05-03更新
|
882次组卷
|
3卷引用:天津市南开中学2022-2023学年高三上学期统练11数学试题
名校
解题方法
10 . 已知数列
满足
,其前5项和为15;数列
是等比数列,且
,
,
,
成等差数列.
(1)求
和
的通项公式;
(2)设数列
的前n项和为
,证明:
;
(3)比较
和
的大小
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b6c85774072d4bb9dc0fcc2f0ab78b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385275d29d8c8a7841eaeaa3dfab2cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bfd0fa5d67b0fc58b2c60d24ddba4f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6644fba340c7fe81fe55f6effde570ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a548938d87c80ac47910607d3857007f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e3d8209cbd7bdf77d503d0f059c2616.png)
(3)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4cbb4329818bcdd4eeda2c28c3a6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd2f03fd712fd04bf9b854ddefba12c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be613fff0421d9be9e8bb5eb8b07c40f.png)
您最近一年使用:0次
2022-04-28更新
|
1452次组卷
|
7卷引用:天津市南开区2022届高三下学期一模数学试题
天津市南开区2022届高三下学期一模数学试题(已下线)临考押题卷04-2022年高考数学临考押题卷(天津卷)天津市咸水沽第一中学2022届高三下学期高考临考押题卷数学试题(已下线)考向20等比数列及其前n项和(重点)(学生版) - 2天津市滨海新区塘沽紫云中学2022-2023学年高三上学期线上期末数学试题(已下线)重组卷01天津市天津经济技术开发区第二中学2023届高三上学期期中数学试题