1 . 已知函数
,若存在
,对于任意
,都有
,则实数a的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5702f80841e1dd7e6b1fd5944ea7b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdbbf365930ff2efb08d0bc8eaed5cb.png)
您最近一年使用:0次
2020-07-04更新
|
1070次组卷
|
4卷引用:浙江省绍兴市柯桥区2020届高三下学期6月高考适应性考试数学试题
浙江省绍兴市柯桥区2020届高三下学期6月高考适应性考试数学试题(已下线)专题3-4 超难压轴小题:导数和函数归类(1)-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)(已下线)专题3-2 压轴小题导数技巧:求参 - 3安徽省滁州市定远县民族中学2021-2022学年高三下学期5月检测数学(文)试题
解题方法
2 . 已知函数
,记
为
的导函数.
(1)当
时,若存在正实数
,
(
)使得
,证明:
;
(2)若存在大于1的实数
,使得当
时都有
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac055cb21fb0f9dfd6bee0985c90ac9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.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/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb25f0934c7a7d28c08cf61481be5ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b725fdc8de9800f2692f6fea8585b1e9.png)
(2)若存在大于1的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8867f5ff28354cdc49b4142cba01e7d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54f8f9c8022fc1954750d31ed418c8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
3 . 设数列
的前
项的积为
,满足
,
,记![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf48cd99db12af9a0652d37ffbbd348.png)
(1)证明:数列
是等差数列;
(2)记
,证明:
![](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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52faf3b76dc0a7b7228229c691835888.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf48cd99db12af9a0652d37ffbbd348.png)
(1)证明:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3e74fcd0b38bb7bbe6f0d8d2d4a256.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6e9dcb0f39c73017c4f41f5efd010e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a62da90466893b3dee8d41b92be7307.png)
您最近一年使用:0次
名校
解题方法
4 . 如图,已知
,
分别是正四面体
的侧面
与侧面
上动点(不包含侧面边界),则异面直线
,
所成角不可能的是
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/44887819-0238-4713-aee1-36235581089a.png?resizew=182)
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/44887819-0238-4713-aee1-36235581089a.png?resizew=182)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 给出下列五个命题:
①函数
在区间
上存在零点;
②要得到函数
的图象,只需将函数
的图象向左平移
个单位;
③若
,则函数
的值城为
;
④“
”是“函数
在定义域上是奇函数”的充分不必要条件;
⑤已知
为等差数列,若
,且它的前
项和
有最大值,那么当
取得最小正值时,
.
其中正确命题的序号是________ .
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e740c343e9753db2d1234c572b86cac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c3988d58a90ce85be4e65c4a86de45.png)
②要得到函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a47a8f4e7de01c03871ab3318b89275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87a9ef1f87936695fb681df932efd10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd428367613ff79e8b9f7729def1d064.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
④“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f1809559a3eed3cae8aa668f1d6da9.png)
⑤已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfc09e305f5528f623a126506e770b2.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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fafbc94594b8c877de8883dea10e374c.png)
其中正确命题的序号是
您最近一年使用:0次
名校
6 . 定义函数f(x)=(1﹣x2)(x2+bx+c).
(1)如果f(x)的图象关于x=2对称,求2b+c的值;
(2)若x∈[﹣1,1],记|f(x)|的最大值为M(b,c),当b、c变化时,求M(b,c)的最小值.
(1)如果f(x)的图象关于x=2对称,求2b+c的值;
(2)若x∈[﹣1,1],记|f(x)|的最大值为M(b,c),当b、c变化时,求M(b,c)的最小值.
您最近一年使用:0次
2020-03-22更新
|
725次组卷
|
2卷引用:浙江省绍兴一中2019-2020学年高二下学期期中数学试题
名校
7 . 在棱长均为
的正四面体
中,
为
中点,
为
中点,
是
上的动点,
是平面
上的动点,则
的最小值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/45557708-e60e-4abe-95c7-d32c0412d5fd.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2977ae4bfa32de8c6f0fb136205c4fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b566c7ac7c852dc138f9bc50ad4b09c6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/45557708-e60e-4abe-95c7-d32c0412d5fd.png?resizew=160)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-02-18更新
|
2823次组卷
|
10卷引用:2020届浙江省绍兴市上虞区高三上学期期末数学试题
2020届浙江省绍兴市上虞区高三上学期期末数学试题(已下线)专题06 立体几何(理)第一篇-备战2020高考数学黄金30题系列之压轴题(新课标版)(已下线)专题06 立体几何(文)第一篇-备战2020高考数学黄金30题系列之压轴题(新课标版)浙江省台州市第一中学2020-2021学年高二上学期期中数学试题北京市海淀进修实验学校2020-2021学年高二10月月考卷试题上海市闵行(文琦)中学2021-2022学年高二上学期期中数学试题(已下线)第09讲 空间几何体的结构与直观图(核心考点讲与练)(1)北京市海淀区教师进修学校附属实验学校2021-2022学年高二上学期10月月考数学试题(已下线)第三章 折叠、旋转与展开 专题二 空间图形的展开与最短路径问题 微点2 空间最短路径问题(二)【基础版】(已下线)专题08 几何体截面与展开最短距离归类(2) -期末考点大串讲(苏教版(2019))
8 . 设关于
的三个方程
,
,
的实根分别为
,
,
,
,
,若
,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b499373cc8cee8105e9bc457e69d8e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fce65c4b72f91e221b88782456fa770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62f2d7a8ff8acee6215ea08d54fc6be.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/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9b42973c53907f09f2de384c42fc5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef5d7669b5a1fbf748a1b39471564aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
9 . 已知
与
.
(Ⅰ)若
,
在
处有相同的切线.求
的值;
(Ⅱ)设
,若函数
有两个极值点
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93cfc910108250106ca6ba0ed40135a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ec7ebc19d9b60f3265816830dc6e0d.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3c2be7482719651bcf491949681e05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0244821c4e431ab581a230e3c1903a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51525c675eb3115eb20d8f76444589fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
10 . 已知椭圆
的左、右焦点分别为
,
,
是椭圆上任意一点,直线
垂直于
且交线段
于点
,若
,则该椭圆的离心率的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1eb15d354e4ef64e6f4297edc8acd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da01a3abe1c9dc4e6283afa0dc1a0d39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0507fce016da64d37cc81f4119deab32.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/f30aee69-dd48-4c01-b406-d3457e1bab41.png?resizew=152)
您最近一年使用:0次
2020-04-10更新
|
3558次组卷
|
10卷引用:2019届浙江省绍兴市柯桥区高三上学期期末数学试题
2019届浙江省绍兴市柯桥区高三上学期期末数学试题河南省许昌高级中学2020-2021学年第一学期第二次调研考试高二数学文科试题浙江省宁波市北仑中学2021-2022学年高二上学期期中数学试题江苏省盐城市伍佑中学2021-2022学年高二上学期期中数学试题(已下线)3.1 椭圆吉林省长春市第二实验中学2022-2023学年高二上学期第一次月考数学试题(已下线)专题9-3 求椭圆双曲线离心率题型归类-3吉林省长春市实验中学2022-2023学年高二上学期期中数学试题(已下线)专题22 圆锥曲线的离心率问题-3(已下线)专题7-3圆锥曲线离心率归类-2