1 . 已知函数
.
(1)当
时,求函数
在
处的切线方程;
(2)若关于
的不等式
的解集有唯一整数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e74da4b06c434c46d5a8958ad77f2592.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd13d230c1af5ec3772f7ff5bef35ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c81965854dbe52a513241f196edf2c.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59b81426a949561b6942a83342ad14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知
,二次函数
,关于
的不等式
的解集为
,其中
为非零常数,设
.
(1)求
的值;
(2)若存在一条与
轴垂直的直线和函数,
的图象相切,且切点的横坐标
满足
,求实数
的取值范围;
(3)当实数
取何值时,函数
存在极值?并求出相应的极值点.
![](https://img.xkw.com/dksih/QBM/2017/2/8/1625059093569536/1625059094274048/STEM/1f7cca2a722548fd8be639d0597c5f1f.png)
![](https://img.xkw.com/dksih/QBM/2017/2/8/1625059093569536/1625059094274048/STEM/40ee763d8f44490dbabcb0d412fc24ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd29caf951651b4fb78fdaa22ea72e57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede1ebe7d117b039d94ba48a2005908d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b5b44512e7f51e248bf9e2ee24781d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若存在一条与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c734c97497ed830ee2086718c57b5c5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f4009b36d575d217802e64a12924dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)当实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d0ff2c51cfe2566af5045a337da2fa7.png)
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3 . 已知函数
的定义域为
为
的导函数.
(1)求方程
的解集;
(2)求函数
的最大值与最小值;
(3)若函数
在定义域上恰有2个极值点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66134e2ddbd44bfab7b0422f282b5359.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f016d753841ee852c3d8824f2b3a709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86eff5761f61a20c240a428f2a7ceda.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1ef742f68e64663beba459825697788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4 . 已知二次函数f(x)=x2+x的定义域为D恰是不等式
的解集,其值域为A,函数g(x)=x3﹣3tx+
的定义域为[0,1],值域为B.
(1)求函数f(x)定义域为D和值域A;
(2)是否存在负实数t,使得A⊆B成立?若存在,求负实数t的取值范围;若不存在,请说明理由;
(3)若函数g(x)=x3﹣3tx+
在定义域[0,1]上单调递减,求实数t的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/1/25/1572464821477376/1572464827678720/STEM/16633df644954b0d9ad870d69b770af6.png?resizew=52)
![](https://img.xkw.com/dksih/QBM/2016/1/25/1572464821477376/1572464827678720/STEM/b66521a14d5342b8a93533b39b224e3b.png?resizew=20)
(1)求函数f(x)定义域为D和值域A;
(2)是否存在负实数t,使得A⊆B成立?若存在,求负实数t的取值范围;若不存在,请说明理由;
(3)若函数g(x)=x3﹣3tx+
![](https://img.xkw.com/dksih/QBM/2016/1/25/1572464821477376/1572464827678720/STEM/b66521a14d5342b8a93533b39b224e3b.png?resizew=20)
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5 . 已知函数
.
(1)求关于
的不等式
的解集;
(2)设
,且当
时,不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a3054218cdf778c9a15253e563c94c.png)
(1)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f7000d9103670cb5b65b0aa8be654f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eda48853e8bdb7e266370b4e0d5a258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db2eb29042782efa4f96d82e6aa35d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1426a4e8a35e36a6164988f03db2a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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11-12高三上·福建厦门·阶段练习
解题方法
6 . 已知函数
(
是自然对数的底数)
(1)求
的最小值;
(2)不等式
的解集为P, 若
且
,求实数
的取值范围;
(3)已知
,且
,是否存在等差数列
和首项为
公比大于0的等比数列
,使数列
的前
项和等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db0107fb8d4cb3a9b6311fa639ca514b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f8ffb5afc3de70c4fcd054c492a6e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7729c3c3e86a2ee0c3f8edff8282178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c9f7fe82ce33779868c7e319a0133d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c0eda754a9ad60eadc8eb1b83d0d06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74156327e5659301f391814605688899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5344eadd4711db34e3f935aedd5fb270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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真题
7 . 设函数
.
(1)求
的单调区间和极值;
(2)是否存在实数a,使得关于x的不等式
的解集为(0,+
)?若存在,求a的取值范围;若不存在,试说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50640246dd3aeac0160d65668d80474.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)是否存在实数a,使得关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1312d640aa773779a34e9d50791ef5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229e67dd9fe978e48c221b0b9dc57f1c.png)
您最近一年使用:0次
2016-11-30更新
|
2169次组卷
|
7卷引用:2008年普通高等学校招生全国统一考试理科数学(辽宁卷)
2008年普通高等学校招生全国统一考试理科数学(辽宁卷)(已下线)2011~2012学年河北省衡水中学高三下学期理科数学试卷2008年普通高等学校招生考试数学(理)试题(辽宁卷)(已下线)专题3-6 导数压轴大题归类(1)-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)(已下线)第二篇 函数与导数专题3 洛必达法则 微点2 洛必达法则综合训练(已下线)第六章 导数与不等式恒成立问题 专题十一 利用洛必达法则解决不等式恒成立问题 微点3 利用洛必达法则解决不等式恒成立问题综合训练(已下线)专题14 洛必达法则的应用【练】
8 . 已知
,二次函数
,关于
的不等式
的解集为
,其中
为非零常数,设
.
(1)求
的值;
(2)若存在一条与
轴垂直的直线和函数
的图象相切,且切点的横坐标
满足
,求实数
的取值范围;
(3)当实数
取何值时,函数
存在极值?并求出相应的极值点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54df3087bd2aad72ce146f773bd3ebb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab47b0622fe2a1abe6ad3945ef7f5b76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/462fa1e56b680d96af1b34fafcb59475.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e8b824d37914814ccc58b7cd92a4c2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d977fb6d13ca2e62dbdc66e31e4ff5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若存在一条与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585717465ee643978c6d8435fee342f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65853e90ccb598c5648bd0cc8bef0e86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)当实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2bc9cd8b29883a52e27a267a0227859.png)
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2011·浙江金华·三模
9 . 已知函数
,
.
(1)若F(x)在x=1处取得极小值﹣2,求函数F(x)的单调区间;
(2)令f(x)=
,若f′(x)>0的解集为A,且满足A∪(0,1)=(0,+∞),求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c25c0df3fb46ea5937d4cb24ef33cb1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffab54b733feb2f8a7fb468b783f374.png)
(1)若F(x)在x=1处取得极小值﹣2,求函数F(x)的单调区间;
(2)令f(x)=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c0bbe4d31d570b5875ca1713620ece1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95358717841874f91bca7f938da6592.png)
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10 . 不等式选讲
已知函数
.
(1)若不等式
的解集为空集,求实数
的取值范围;
(2)若
,
,且
,判断
与
的大小,并说明理由.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404441c70a9646cdfca5abd062ae7aa4.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9109d2dd96264b9db4d4c92d86481acc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a3b6334fa03e9c102a5d88b7870b3fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/126e33a63a60a0823bb75d8651d2eb91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de648cd39338d48f2d22eb82a77b4839.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79cd178e6ed431cc6ff183aeca302778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36576fd651dd88f5fd39a14848a0e9eb.png)
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