名校
1 . 已知函数
.
(1)讨论
的单调性;
(2)若
恒成立,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2138eeabecd994f238b440f870fc5a2.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300ed01b8f10f5d764815e2d907a5714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
您最近一年使用:0次
2017-09-10更新
|
1823次组卷
|
9卷引用:湖南省岳阳市一中2018届高三上学期第一次月考数学(理)试题
名校
解题方法
2 . 已知点
是直线
与椭圆
的一个公共点,
分别为该椭圆的左右焦点,设
取得最小值时椭圆为
.
(1)求椭圆
的标准方程及离心率;
(2)已知
为椭圆
上关于
轴对称的两点,
是椭圆
上异于
的任意一点,直线
分别与
轴交于点
,试判断
是否为定值;如果为定值,求出该定值;如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f61de965b9d38982e5a75af2737e57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68ba9d1bea4de1326af31f6f57b7286a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b544d6780116819230e2fb036d4d1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92ca520748c8b8d3878fb112a89ada7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/185a546bbd3d3d09aae4c2dc2ecb792b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1019d4ad2e3fb4a7abb66e0e9e55b556.png)
您最近一年使用:0次
名校
3 . 已知
.
(1)当
时,若恰好存在两个实数
使得
,求实数
的取值范围;
(2)若
,函数
在
上不单调,且它的图象与
轴相切,记
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddec24902a5853c3675c2377ad9c4a2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0d7fbcc396c7b646c31f60e32d9e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25af1963a9357e2c5eda379417be0bb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f0ded218b8b3306bebddcfd6e12132f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d9b464756bf0010cf2a2cc32fb9665e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be57a0f1f07442e1e722ef11e9d7f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2017-09-06更新
|
671次组卷
|
3卷引用:湖南省长沙市第一中学2017-2018学年高一上学期期中考试数学试题
名校
解题方法
4 . 定义在
上的偶函数
,当
时,
,且
在
上恒成立,则关于
的方程
的根的个数叙述正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c196699a7586be3ba81b671afdf1df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa744c6019195b4edcd21bde5784ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe29e66d8c062cc4fde8943bbc14b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0921d1380843c8e46e3f5ee77ed1315b.png)
A.有两个 | B.有一个 | C.没有 | D.上述情况都有可能 |
您最近一年使用:0次
2017-09-02更新
|
801次组卷
|
2卷引用:湖南省衡阳市第八中学2018届高三上学期第三次月考数学(理)试题
名校
5 . 在三棱锥
中,底面
是边长为 2 的正三角形,顶点
在底面
上的射影为
的中心,若
为
的中点,且直线
与底面
所成角的正切值为
,则三棱锥
外接球的表面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df6d51738ac1bc8b9530ea4a55745c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-11-27更新
|
1398次组卷
|
5卷引用:湖南省衡阳市第八中学2018届高三上学期第三次月考数学(理)试题
名校
6 . 已知函数
的定义域为[0,m],值域为[0,am2],则实数a的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c051b2e1a461e083db30fc9a1078313.png)
您最近一年使用:0次
7 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9566e2b9e842c2bdfa3fa926fbb802f.png)
(I)求
的导函数
(II)求
在区间
上的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9566e2b9e842c2bdfa3fa926fbb802f.png)
(I)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f4d0979f99fca4394ea0aa7d53d1f5.png)
(II)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f4d0979f99fca4394ea0aa7d53d1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c03e63c6a4078b900c5293860fd036b.png)
您最近一年使用:0次
2017-08-07更新
|
5158次组卷
|
14卷引用:湖南省衡阳市第八中学2017-2018学年高二上学期期中考试数学(文)试题
湖南省衡阳市第八中学2017-2018学年高二上学期期中考试数学(文)试题2017年全国普通高等学校招生统一考试数学(浙江卷精编版)2019届高考数学人教A版理科第一轮复习单元测试题:第三章 导数及其应用2017-2018学年人教A版高中数学选修2-2 综合质量评估2020届天津市南开中学高三数学统练(3)陕西省西安中学2020届高三高考数学(理科)适应性试卷(三)(已下线)专题13 函数与导数综合-五年(2016-2020)高考数学(文)真题分项(已下线)专题05 导数及其应用-2021年浙江省高考数学命题规律大揭秘【学科网名师堂】(已下线)押第20题数列-备战2021年高考数学临考题号押题(浙江专用)(已下线)专题12 导数-五年(2017-2021)高考数学真题分项(新高考地区专用)(已下线)专题02 函数与导数-十年(2012-2021)高考数学真题分项汇编(浙江专用)(已下线)专题03 导数及其应用-五年(2017-2021)高考数学真题分项汇编(文科+理科)(已下线)专题22 导数解答题(文科)-1(已下线)专题22 导数解答题(理科)-2
名校
8 . 定义在
上的函数
,如果对任意的
,都有
成立,则称
为
阶伸缩函数.
(
)若函数
为二阶伸缩函数,且当
时,
,求
的值.
(
)若
为三阶伸缩函数,且当
时,
,求证:函数
在
上无零点.
(
)若函数
为
阶伸缩函数,且当
时,
的取值范围是
,求
在
上的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c170c6edcf12a405c10a953df1eba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46ecf935049473045cdebae68415657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb73fa3b190cf93a602f12466901c46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/443fbb92a82fb4c57b34f505ed60735d.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d6c4782b2114209b906b06f284ab720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7444d84d848c1d0e5f017694f88b53d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f39f59f3af3784e7e87bef70122c7d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79fe3414b32bbd1190b41ed8307f905.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc07b986f375453663b3e5c93eb1e0d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ae66c5401deed7341470ca37800463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c769af02c1e75287e56632714c57017c.png)
您最近一年使用:0次
2017-07-21更新
|
442次组卷
|
2卷引用:湖南省衡阳市第八中学2016-2017学年高一下学期理科实验班结业(期末)数学试题
名校
9 . 某三棱锥的三视图如图所示,则该三棱锥最长的棱长为
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-07-07更新
|
2445次组卷
|
5卷引用:湖南省衡阳市第八中学2017届高三高考适应性考试(5月)数学(文)试题
名校
解题方法
10 . 若有穷数列
(
是正整数),满足
即
(
是正整数,且
),就称该数列为“对称数列”.例如,数列
与数列
都是“对称数列”.
(1)已知数列
是项数为9的对称数列,且
,
,
,
,
成等差数列,
,
,试求
,
,
,
,并求前9项和
.
(2)若
是项数为
的对称数列,且
构成首项为31,公差为
的等差数列,数列
前
项和为
,则当
为何值时,
取到最大值?最大值为多少?
(3)设
是
项的“对称数列”,其中
是首项为1,公比为2的等比数列.求
前
项的和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecb97979f93c90fcf4baa7b7106abb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7953bb514daa500885e892857678f0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22fc26a14e8e5987688565881fb71e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef835c9ad2636a9662fb6c99e3abc78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8b266d811e20740699ab629767b43e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1122d70cf267893185983de9d811729.png)
(1)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57483e04fd1840c87ac5325157149877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a548938d87c80ac47910607d3857007f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f6714682274c31a328bf796e235900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385275d29d8c8a7841eaeaa3dfab2cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc5a47eb206ee12c7f65ea26fc26e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64fcc69dc28bc11b22f5c9bec9e2aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ada2c9f82459340da96274ee60ffbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cba4fcd5b19e52391aa57127aa39b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0fcf02ab751cc3910a0bc0872ac2a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05201ef79a5d5904f492845396fb5470.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8746bc092f553f33ce1a0d8d2b7b28d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be881773917095d173260995ffacfd0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/897d8f6cf00391f1b3ff70432f0121b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a31ec8dee46f3affe69cbdb2abbe8feb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a31ec8dee46f3affe69cbdb2abbe8feb.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50d1705a68b70921f86dd10020420b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24de9307bdb075bfc55d86d35e54ed57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50d1705a68b70921f86dd10020420b5.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/70f1dd3b69d0e8157998cc59efedb022.png)
您最近一年使用:0次
2017-07-02更新
|
219次组卷
|
2卷引用:湖南省长沙市明德中学2016-2017学年高二上学期阶段测试数学试题