已知函数
,
,
是
的导函数.
(1)若
,求函数
的最小值;
(2)若函数
在
上单调递增,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b160c09b8172e5fcc9a7696b6c6b73c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
2021·甘肃·二模 查看更多[7]
甘肃省2021届第二次高考诊断文科数学试题河南省驻马店市正阳县高级中学2020-2021学年高三预测数学(文)试题(已下线)押第21题 导数的应用-备战2021年高考数学(文)临考题号押题(全国卷2)(已下线)专题2.12 导数-极值、最值问题-2021年高考数学解答题挑战满分专项训练(新高考地区专用)新疆阜康市第一中学2020-2021学年高二下学期期中考试数学(理)试题陕西省西安市第三中学2020-2021学年高二下学期期中文科数学试题四川省乐山市峨眉第二中学校2022-2023学年高二下学期期中数学理科试题
更新时间:2021-04-17 18:48:17
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解答题-证明题
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适中
(0.65)
【推荐1】已知函数
,其中
.
(1)若
,
和
在区间
上具有相同的单调性,求实数
的取值范围;
(2)设函数
有两个极值点
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ec1af04caa352f7a82f4f34d161ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d4174e8e06c345c2f2a9ac928df147f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83f51f42e60d3c156555386be5d500ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff60eab72de85437e12806474281612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5714b7b2ecbd3c046f1977e0a37cf65b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abde88ae70749bfe32ad0325643002d.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知函数
(
,
是常数且
).
(Ⅰ)若函数
在
处取得极值,求
的值;
(Ⅱ)若
在
内存在单调递减区间,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b0bcd12c1a5e4fb50e410df3e06597.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(Ⅰ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba53065eb180a682305fddb95d14b62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0711b0110b79588346d8b13bf7ead317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-应用题
|
适中
(0.65)
名校
解题方法
【推荐1】如图,有一个半圆形场馆,政府计划改建为一个方舱医院,改建后的场馆由病床区(矩形
)及左右两侧两个大小相同的休闲区(矩形
和
)组成,其中半圆的圆心为
,半径为50米,矩形
的一边
在
上,矩形
的一边
在
上,点
,
,
,
在圆周上,
,
在直径上,且
,设
.若每平方米病床区的造价和休闲区造价分别为
万元和
万元,记病床区及休闲区的总造价为
(单位:万元).
![](https://img.xkw.com/dksih/QBM/2020/11/26/2601383480901632/2605619553419264/EXPLANATION/1904d937436443fc95291ada2e1ae73d.png?resizew=213)
(1)求
的表达式;
(2)为进行改建预算,当
为何值时,总造价最大?并求出总造价的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aecfaacadf3965e934d324d1c000c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc7ee0ef8945ba1b90e59aed7cab889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc7ee0ef8945ba1b90e59aed7cab889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aecfaacadf3965e934d324d1c000c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67716ac738ee2911a69bf4063110a5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d03f96dedafd59265a9c8cc13a49b84b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418b061f3f584e6c6e3ef122fd3f1da7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576d8a704011b3d75d12d828fc77a60f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca83504e351d7516f61a3052d7a31859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af8b890dd16f06c5be95c19b4cb4d935.png)
![](https://img.xkw.com/dksih/QBM/2020/11/26/2601383480901632/2605619553419264/EXPLANATION/1904d937436443fc95291ada2e1ae73d.png?resizew=213)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af8b890dd16f06c5be95c19b4cb4d935.png)
(2)为进行改建预算,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
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解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐2】已知函数
的图象在
处的切线方程为
.
(1)求
;
(2)证明:
只有一个极值点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ef244066b183eaa000aeed6d6ffff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87490be8d0cdb7bc6c39d1a37f3bc335.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次