名校
1 . 已知函数
.
(1)当
时,求函数
在点
处的切线方程
(2)当
时,求函数
的极值
(3)若
在
上是单调增函数,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34eb73d42a272b4348920ace1b5e0b35.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45cc23c06a82aafc77c6483d2394089d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7dee6b8154e7ccafc0eef3c153740a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c5131b84135732ff1aa4fec37482213.png)
您最近一年使用:0次
解题方法
2 . 已知函数
的导函数为
,
的导函数为
,对于区间A,若
与
在区间A上都单调递增或都单调递减,则称
为区间A上的自律函数.
(1)若
是R上的自律函数.
(ⅰ)求a的取值范围;
(ⅱ)若a取得最小值时,
只有一个实根,求实数t的取值范围;
(2)已知函数
,判断是否存在b,c及
,使得
在
上不单调,且
是
及
上的自律函数,若存在,求出b与c的关系及b的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac282e92da3691942a6ba8511de2303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf6710a9e70f5e01e62df02c7977fb99.png)
(ⅰ)求a的取值范围;
(ⅱ)若a取得最小值时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e5b4bb2360c7df054d14d0a20186da.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a0c15b208d3096fdf206a6ac918c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2188a7cdcc9dac14ffbbc2239c81a7a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccfdd3d02b54e997cbec983d80f6bafd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b14ccdd85f5f2f59f6b0ef3329f34a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1057fe66bead8b39e4099ca62a9d5a28.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
.
(1)若函数
在
上是增函数,求正实数
的取值范围;
(2)当
时,求函数
在
上的最大值和最小值;
(3)当
时,对任意的正整数
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac15cac5b3af917dfc947318d968121.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6d804ef44bfc64f824b0ccef71765e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f5e5ba3a62f61ff22319d3decfdc48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/742254b2bd8972eb9d52341ed2ef98f7.png)
您最近一年使用:0次
4 . 设函数
.
(1)若
,求曲线
在点
处的切线方程;
(2)若函数
在区间
内单调递增,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3cf85e80663b8cf9f1700939d7f100a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a2a34b4317deffa40ba34e269c2b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea9824af71c9da5db5a00ec06063024.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
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5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc80f38b6d55c82cabe23189b34bd1c9.png)
(1)当
时,求
在点
处的切线方程;
(2)若
在区间
上单调递增,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc80f38b6d55c82cabe23189b34bd1c9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
您最近一年使用:0次
名校
6 . 已知函数
.
(1)若
,求曲线
在点
处的切线方程;
(2)若函数
在区间
上单调递增,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb62457fef4467d9f166949e8da6b8a8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711b21672fd907c5c92fee1d649e7003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c959ab293ef3ecbba70b635da3e2a8.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
7 . 已知函数
.
(1)若函数
在定义域上单调递增,求实数
的取值范围;
(2)讨论函数
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf1fd9e0bd3364d3d5ce2e16333d66c.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68072473a5106f93e3026d992859f7a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0980585997fdec11fc3ee06bdaaa3d06.png)
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名校
解题方法
8 . 已知函数
.
(1)当
时,求
在
处的切线方程:
(2)若
在
上单调递增,求
的取值范围;
(3)若
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a52773bdacddad8d13bf15547c0ff3.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53d64a8dda19c0a7fc5c4a3b07ab005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcbe8b4bcd32e5a64ebfd873f8cbb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad9f25e25c2c8899f163d3fd4fdadf34.png)
您最近一年使用:0次
解题方法
9 . 已知函数
,
.
(1)当
时,求函数
的最小值;
(2)若
在
上单调递减,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a8e5db838077d57fb9a2f61ab5cf90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aca0cd153767be79f871165cda63caa.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa662f0273f0921c1fa4727f632395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
您最近一年使用:0次
名校
10 . 已知函数
,其中
为实数.
(1)若
,试求函数
的单调区间;
(2)当
,
,且
时,若恒有
,试求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dad715f96e30ef5b2aee72f6f70e696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4600e5b68781cad26ae3ad645040d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02bee16def3c36880826df89d22ae448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8affca02377335d69b6b23344f3cea10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次