19-20高一·浙江·期末
名校
1 . 已知函数
.
(Ⅰ)当
时,求函数
的单调区间;
(Ⅱ)当
时,证明:函数
有2个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f80bb085f7f11e25b87fd015dbd4531.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4a2d4a99bf35ab3fefbdf9a442df2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2020-12-16更新
|
2035次组卷
|
10卷引用:【新东方】419
(已下线)【新东方】419浙江省百校2020-2021学年高三上学期12月联考数学试题(已下线)专题05 导数与函数的零点问题 第一篇 热点、难点突破篇(讲)- 2021年高考二轮复习讲练测(浙江专用)(已下线)专题05 导数与函数的零点问题(讲)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(浙江专用)》陕西省西安中学2021届高三下学期第二次模拟考试数学(理)试题湖南省岳阳市2021届高三下学期二模数学试题福建省福州市2021届高三高考考前模拟卷数学试题陕西省西安市高陵区第一中学2021届高三下学期二模理科数学试题陕西省西安中学2022届高三下学期三模理科数学试题安徽省合肥市第八中学2020-2021学年高二下学期期中理科数学试题
2018高二上·浙江·学业考试
解题方法
2 . 设函数
,
,
.
(1)已知
在区间
上单调递减,求
的取值范围;
(2)存在实数
,使得当
时,
恒成立,求
的最大值及此时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5965ab6b5f60b6b97c1273d3c347e01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bea12f2c2e9e59e73b5ee0566dff9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42f54feac6ed738a868ecd53d3a85a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c835c223c5624fe31b645583e78955f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
3 . 已知在棱长为12的正四面体
的内切球球面上有一动点
,则
的最小值为______ ,
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fa934e811e5cc76e48ab93ffddbb83.png)
您最近一年使用:0次
解题方法
4 . 已知函数
.
(1)证明:
时,
;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9a6a0ad0a5ee53205ac42a6261fa03.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6b9a926eb1876d017ce1198e32efec6.png)
您最近一年使用:0次
2020-12-14更新
|
1693次组卷
|
7卷引用:安徽省池州市东至县2020-2021学年高三上学期12月大联考数学(文)试题
安徽省池州市东至县2020-2021学年高三上学期12月大联考数学(文)试题安徽省全省名校实验班2020-2021学年高三上学期大联考文科数学试题(已下线)专题04 利用导数证明不等式 第一篇 热点、难点突破篇(讲)- 2021年高考二轮复习讲练测(浙江专用)(已下线)专题15 函数、数列、三角函数中大小比较问题(讲)-2021年高三数学二轮复习讲练测 (新高考版)(已下线)专题04 利用导数证明不等式(讲)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(新高考·全国卷)》江苏省苏州市张家港市2022-2023学年高三上学期1月期末数学试题(已下线)第三章 重点专攻二 不等式的证明问题(讲)
5 . 已知函数
(
是自然对数的底数).
(1)设
,
,求证:
;
(2)设
,若
,试讨论
在
上的零点个数.(参考数据
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcde82aabb8f1c0761351fda95c6b012.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a82596c51d86740674226a891375523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4119056b983cf60cd26ed9dbe8fca76c.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00210f79b04a8f6bc1922433d00bc89a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55feb3cbcaf37c63b6ce1c5abece8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71163f419555f2ed76075c8ff659fbfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f01a7d67ad69c68bb1e2438dbecf44c.png)
您最近一年使用:0次
6 . 已知
.其中常数
.
(1)当
时,求
在
上的最大值;
(2)若对任意
均有两个极值点
,
(ⅰ)求实数b的取值范围;
(ⅱ)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0140e7d14adb60f5f29a612a1886609d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ef6c8454cd51ea4d6d1ad225b21b61c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e1c681b27df538bd4742f6cd8298ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9210e75c35fb455d0446eb7ddba7d79c.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc56145a8d4d88a63dcb649bc374e35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
(ⅰ)求实数b的取值范围;
(ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b7393fc425948d4261bb6c7d67f88e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92aac8b5593c2bd2ee416f6eec311f10.png)
您最近一年使用:0次
2020-12-03更新
|
1451次组卷
|
8卷引用:重庆市第一中学2020届高三下学期5月月考数学(理)试题
重庆市第一中学2020届高三下学期5月月考数学(理)试题重庆市第一中学校2021届高三上学期第三次月考数学试题(已下线)专题04 利用导数证明不等式 第一篇 热点、难点突破篇(练)- 2021年高考二轮复习讲练测(浙江专用)(已下线)黄金卷18-【赢在高考·黄金20卷】备战2021高考数学全真模拟卷(新高考专用)天津市新华中学2021届高三下学期第7次统练数学试题海南省北京师范大学万宁附中2020-2021学年高二下学期第一次月考数学试题(已下线)数学-2022年高考押题预测卷01(天津卷)黑龙江省牡丹江市第二高级中学2023-2024学年高三上学期第二次阶段性考试数学试题
7 . 设数列
的前
项和为
,
,
(
),
(
,
).且
、
均为等差数列,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c88abd936125401c8d7e3bc21f4396.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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f108d4cbb79fbc793f2dfc9209b9436d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/517e35343ceb3e569482b9a5beaecb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce64685821c3e55c07f151996ca8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f78927a4313925a218f7cf271c2c7a32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8194a62bc60a9da9b5cf76f9dc0fa09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf33b2a94eae16760d746f9b4b8dbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c88abd936125401c8d7e3bc21f4396.png)
您最近一年使用:0次
2020-12-03更新
|
1271次组卷
|
4卷引用:上海市宝山区行知中学2020-2021学年高二上学期期中数学试题
8 . 已知函数
.其函数图像与x轴交于
、
.且
.
(1)求a的取值范围;
(2)求证:
;
(3)若C在
图像上,且
为正三角形,记
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d736bd6b62c0c345883666b186f7302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec3d75e53b990bc8f9a4622928dd21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b583230a32b774445332490c511989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
(1)求a的取值范围;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e7cc76f3a9534ded61c8ca8a0d2706.png)
(3)若C在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce392cc8bd8b1f449b731cc0bc8c6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6607bca9aec0da0c966fcb2e4ac102f9.png)
您最近一年使用:0次
解题方法
9 . 如图,在四棱锥
中,底面
是矩形,侧面
底面
,
是边长为
的等边三角形,点
分别为侧棱
上的动点,记
,则
的最小值的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235d1553f6806c1eee3b17b94d23f0f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e49817548cb45b3d1e58570644c6fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b81c01cc7eda0e228f6e2698a009cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1cf0e03059d771b4148356396a4908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/17/a9da7095-10d3-48db-ba34-2c82bb5d3222.png?resizew=266)
您最近一年使用:0次
名校
10 . 已知函数
,
.
(1)当
时,求
的单调区间;
(2)对
,
,使得
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325cd3e57465c5cc93f068c94c2b8f7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffdc7abe8d20489e270baddfbbb7507.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d99a69673481ca9dda7376a3ddcbc304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34afbd3a8620a58ab528dd8e160e1a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed146d3a381000435e64b2a0406d3b48.png)
您最近一年使用:0次
2020-11-30更新
|
1333次组卷
|
3卷引用:浙江省温州中学2020-2021学年高一上学期期中数学试题