名校
解题方法
1 . 已知函数
(
为自然对数的底数),其中
.
(1)在区间
上,
是否存在最小值?若存在,求出最小值;若不存在,请说明理由.
(2)若函数
的两个极值点为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de86f25ab53d79c081b23830ee7b620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00d461d6608371ebd317d3586fb69a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264b93aa6b21f14144bf1f77be3831e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d91f584edb904cc7b07cd816ec9ac5.png)
您最近一年使用:0次
2020-04-19更新
|
1445次组卷
|
5卷引用:黑龙江省大庆实验中学2020届高三综合训练(五)数学(文)试题
2 . 某公司欲投资一新型产品的批量生产,预计该产品的每日生产总成本价格)
(单位:万元)是每日产量
(单位:吨)的函数:
.
(1)求当日产量为
吨时的边际成本(即生产过程中一段时间的总成本对该段时间产量的导数);
(2)记每日生产平均成本
求证:
;
(3)若财团每日注入资金可按数列
(单位:亿元)递减,连续注入
天,求证:这
天的总投入资金大于
亿元.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9e3924b228756a1ea34cf012ec776b4.png)
(1)求当日产量为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
(2)记每日生产平均成本
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271276096415d06f595566fa49d8b0fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2483de260b7dad9d15e47db87bde00af.png)
(3)若财团每日注入资金可按数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a213f804c1021e2423a760ef71c4fd8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3779b4ea5477aebfe85113b0de1d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3779b4ea5477aebfe85113b0de1d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b0295189caba73e7bd856eefacabe7.png)
您最近一年使用:0次
名校
解题方法
3 . 已知椭圆
的左、右焦点分别为
直线
垂直于
轴,垂足为
,与抛物线
交于不同的两点
,且
过
的直线
与椭圆
交于
两点,设
且
.
(1)求点
的坐标;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533b93dd6eb6b474481247736699c76c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf56a7eb7cf44143f7275ad8f61be1b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87ac67ee6ed02818f88255215c3e4eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.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/0f9740fce8b8eb32ec2d0270be7a9e42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a6b220cf6638ed556c535bda949bb5.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8399f40225d7b0bc5a81a155d50cddff.png)
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名校
4 . 一批产品共10件,其中
件是不合格品,从中随机抽取2件产品进行检验,记抽取的不合格产品数为
.若先随机抽取1件,放回后再随机抽取1件,当抽到不合格产品数
时,概率为
.
(1)求
的值;
(2)若一次性随机抽取2件,求抽到不合格产品数
的分布列及数学期望.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf7f68464733a0c322c304fdeacc722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/793bd9d1f414dbdb881855aa6ae3de79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/112f9ca77aeb366db6023817d9891cb1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)若一次性随机抽取2件,求抽到不合格产品数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
您最近一年使用:0次
2020-04-17更新
|
1363次组卷
|
2卷引用:黑龙江省大庆市实验中学实验二部2023-2024学年高二下学期期中考试数学试卷
名校
5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
x3
x2﹣2x(a∈R).
(1)当a=3时,求函数
的单调递减区间;
(2)若对于任意x∈
都有
成立,求实数a的取值范围;
(3)若过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9481ae8070eb581425dc03ba66bb186.png)
可作函数
图象的三条不同切线,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9099edf6ae0b11bef3b6cf639181b32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339ec364aa7084673699432f3d47756a.png)
(1)当a=3时,求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对于任意x∈
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb7de559fbd5dc652205635d2245fe2f.png)
(3)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9481ae8070eb581425dc03ba66bb186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3883f1540cc058d77607aeb294727f13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次
2020-04-17更新
|
394次组卷
|
2卷引用:黑龙江省大庆实验中学2019-2020学年高二下学期期末考试数学(理)试题
6 . 已知函数
.
(1)讨论函数
的单调性;
(2)已知函数
的两个极值点
,若
,①证明:
;②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e5e91254b8cca60c777ec8c1d64351.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8290462833d49f09c644c9113ed1d476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347c62b44fae618a37c145b3b5d1f1db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ea366f1b3e38506c5aa54dbd9d2484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/749be304702f35bb2a7bb75bc381a080.png)
您最近一年使用:0次
2020-04-15更新
|
385次组卷
|
4卷引用:黑龙江省佳木斯市汤原县高级中学2022届高三上学期期末数学(文)试题
黑龙江省佳木斯市汤原县高级中学2022届高三上学期期末数学(文)试题广西玉林市2019-2020学年高三第一次适应性考试数学(理)试题广西南宁市2019-2020学年高三第一次适应性测试数学(理)试题(已下线)专题21 函数与导数综合-2020年高考数学(理)母题题源解密(全国Ⅲ专版)
名校
解题方法
7 . 设函数
.
(1)若
恒成立,求整数
的最大值;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1415c90fda5b113d32651ecac1d5fb55.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea345ec447ec62daad6b5b652c417152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35da27075b4cbe0c22c9a1f35e1b2622.png)
您最近一年使用:0次
2020-04-14更新
|
818次组卷
|
5卷引用:黑龙江省哈尔滨市第九中学2021-2022学年高三下学期开学考试数学(理)试题
黑龙江省哈尔滨市第九中学2021-2022学年高三下学期开学考试数学(理)试题2020届广西桂林、崇左、贺州高三下学期二模数学(理)试题2020届广西桂林市、崇左市、贺州市高三模拟理科数学试题广西桂林、崇左、贺州市2019-2020学年高三下学期第二次联合调研考试数学(理)试题(已下线)专题21 函数与导数综合-2020年高考数学(理)母题题源解密(全国Ⅲ专版)
8 . 已知函数
在点
处的切线方程为
.
(Ⅰ)求函数
的解析式及单调区间;
(Ⅱ)若方程
有三个实根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3920d83c2afb4aa9edb8491db52374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d014dbc7ada77b614a1c0ba4e0ddcad2.png)
(Ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f38a9dd2edee6d0f2fe2736cbea64772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,在四棱锥
中,
底面
,底面
是正方形,且
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/2020/4/12/2439992711577600/2440183013744640/STEM/db282ee53d094c32b3c7a26237510bd5.png?resizew=189)
求证:直线
平面
;
求直线
与平面
的夹角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb2e071d4e01107dcf7d95cbb86b415.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45cafe187bef7a5aa6792e649933fffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://img.xkw.com/dksih/QBM/2020/4/12/2439992711577600/2440183013744640/STEM/db282ee53d094c32b3c7a26237510bd5.png?resizew=189)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e04a28a7f47d499eaf7451d5a6c3872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d923a338dd2d2e29336b42574d38448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926584088b939200d88e64318f2d4e6c.png)
您最近一年使用:0次
2020-04-13更新
|
589次组卷
|
7卷引用:黑龙江省大庆市东风中学2023-2024学年高二上学期10月月考数学试题
2019·浙江绍兴·模拟预测
名校
解题方法
10 . 已知函数
,设
的导函数为
.
(1)求证:
;
(2)设
的极大值点为
,求证:
.(其中
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2587323ea275c9e51c8285acc7981f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85187c85826beeca12137805293fff77.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c545f50457c38500a3f1299b151ed42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb9caa789fe6ce2dfe2a009d8e34dec.png)
您最近一年使用:0次
2020-04-12更新
|
474次组卷
|
5卷引用:黑龙江省绥化市安达市第七中学2020-2021学年高二上学期9月月考数学试题