已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ed3b6866d53432ea1cc4b29ea9b0188.png)
(1)讨论
的单调性;
(2)当
时,设
且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ed3b6866d53432ea1cc4b29ea9b0188.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04f6f24dd882a0653ce14865f885ee36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3710d98d5d69565b46ef87a66b911b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb5e5818dddd8bc37cd03afa0007ee0.png)
2015·四川·一模 查看更多[6]
【全国省级联考】四川省2015级高三全国Ⅲ卷冲刺演练(一)理科数学试题【全国省级联考】四川省2015级高三全国Ⅲ卷冲刺演练(一)文科数学试卷【全国校级联考】福建省百校2018届下学期临考冲刺高三数学考试卷数学文科2020届山东省济宁市第一中学高三下学期二轮质量检测数学试题(已下线)第4篇——函数导数及其应用-新高考山东专题汇编(已下线)专题4.4 导数的综合应用(精练)-2021年新高考数学一轮复习学与练
更新时间:2018-05-30 16:39:49
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解答题-问答题
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困难
(0.15)
名校
【推荐1】已知函数
,
.
(1)记
,当
时,求
的单调区间.
(2)若关于x的方程
有两个不相等的实数根
,
.
①求实数a的取值范围;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78b72e777c37963f7c48aa27a21ccdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2294bf0b10d85236ca70aa7f6e52103.png)
(1)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d22b4beb798f9b1b12b9036e725f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(2)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9587df831df1af5e7dd6be5fdc7bd8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
①求实数a的取值范围;
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475c9073257b3d0760e2c6051a82d592.png)
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困难
(0.15)
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【推荐2】已知函数
.
(1)求函数
的单调区间;
(2)若不等式
在
时恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6b48188f8e115d95504042891961ab2.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c33440dc7b2ff6927e55d4d38c03c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-证明题
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解题方法
【推荐1】已知函数
.
(1)讨论函数
在
上的单调性;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196385b84c63f3c5462d5f74d60b09e1.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89607d42230a9726a2a22b44deb668f2.png)
您最近一年使用:0次
解答题-问答题
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困难
(0.15)
【推荐2】已知函数
.
(1)求函数
的单调区间;
(2)若不等式
恒成立,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c5774cd2177732e6c5f03f3059abbb.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
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(0.15)
名校
【推荐3】已知函数
.
(1)若函数
,试讨论
的单调性;
(2)若
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd0f7a6403fac2550aefbfc53680171.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585de67a3fc494297d375d339af6d153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc2ccaad45af8bfcfcedfeb7149ed5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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(0.15)
解题方法
【推荐1】已知函数
.
(1)若函数
在
处的切线与
轴平行,求
的值;
(2)若存在
,
,使不等式
对于
,
恒成立,求
的取值范围;
(3)若方程
有两个不等的实数根
、
,试证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/027b7d9664193acabe0340663fb32914.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c21ab73de48a9331d30f360d428b39a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad04b9df1032e5d2953e45d238da08d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c982eeb9b2a3d426a7aa70a0d3a91c2c.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/d3661dbd3b2c578c685e6a11a4102ddd.png)
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解答题-证明题
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困难
(0.15)
【推荐2】已知函数
有两个零点.
(Ⅰ)求a的取值范围;
(Ⅱ)设x1,x2是
的两个零点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31bd54e6edcce89def1b3775cbd0c965.png)
(Ⅰ)求a的取值范围;
(Ⅱ)设x1,x2是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b16e351194add13d7e344e49be9332d6.png)
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