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1 . 已知函数f(x)
+alnx,实数a>0.
(1)当a=2时,求函数f(x)在x=1处的切线方程;
(2)讨论函数f(x)在区间(0,10)上的单调性和极值情况;
(3)若存在x∈(0,+∞),使得关于x的不等式f(x)<2+a2x成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c360f6be4db779ca8ecfdf56f045e18f.png)
(1)当a=2时,求函数f(x)在x=1处的切线方程;
(2)讨论函数f(x)在区间(0,10)上的单调性和极值情况;
(3)若存在x∈(0,+∞),使得关于x的不等式f(x)<2+a2x成立,求实数a的取值范围.
您最近一年使用:0次
名校
解题方法
2 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/199b0bcc535fb12d37e6bc5f07fdcfc1.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0dab12704f13e2b653394deb89f0db3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf9befc3b336d83b83bcfcbc19c0752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29674ff28eacd8d0ffa2af71611b22c8.png)
您最近一年使用:0次
2022-03-11更新
|
634次组卷
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2卷引用:北京市第五中学2022-2023学年高二上学期期末数学试题
名校
3 . 设函数
.
(1)若曲线
在点
处的切线斜率为1,求实数
的值;
(2)求
的单调区间;
(3)若
,
为整数,且当
时,
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8236dbb8a4eb3cd95af0911085260da5.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25947ad80e8efa7468fae8276c28dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2022-03-04更新
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6卷引用:北京市东城区第一六六中学2024届高三上学期期末模拟测试数学试题
北京市东城区第一六六中学2024届高三上学期期末模拟测试数学试题(已下线)北京市东城区第一六六中学2023-2024学年高三上学期期末模拟考试数学试题北京师范大学附属实验中学2022届高三下学期摸底考试数学试题(已下线)重难点06 导数-2022年高考数学【热点·重点·难点】专练(全国通用)(已下线)专题5 隐零点问题(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
名校
4 . 已知函数
.
(1)若
,求曲线
在点
处的切线方程;
(2)若对任意
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65ec3ed5c7859e5677327f263d52746.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c164755dc2d7cff80fb4c9cffc9be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f890eb5d86a7484141a8aa9d946552df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-02-14更新
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4卷引用:北京市顺义区2022届高三上学期期末数学试题
5 . 已知函数
,
.
(1)求曲线
在点
处的切线方程;
(2)求函数
的单调区间;
(3)若函数
有两个不同的零点,记较大的零点为
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef642bb911039a36ff9dff4641f37c55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c18a8b71a8ab3e115a2813eb72364c4f.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef642bb911039a36ff9dff4641f37c55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155c7f573e898da225390202da1767e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2676e18163369e3616a8d75a14ecb36c.png)
您最近一年使用:0次
6 . 已知函数
.
(1)求
在点
处的切线方程;
(2)证明:
在区间
存在唯一极大值点;
(3)证明:当
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/651a5b41e77504584325470d44784795.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c6b6a11760d0724b0b60e55970e229.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3df4bc1524ae2ada366c2ce1319da50.png)
(3)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
您最近一年使用:0次
名校
7 . 已知函数
.
(1)若
,求
在点
处的切线方程;
(2)若
在
上恰有一个极小值点,求实数
的取值范围;
(3)若对于任意
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c961031fb41532482ebabd6aba8cba.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ad8175214b7ae238425e65c09a2db1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4bc53cbd5f20420804cd48a67ab6a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2022-01-16更新
|
996次组卷
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6卷引用:北京西城区2022届高三上学期期末数学试题
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解题方法
8 . 已知函数
.
(1)若
,求曲线
在点
处的切线方程;
(2)曲线
在直线
的上方,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/108c2f51f70e13b6eeee00b99a8a56ee.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2970f878f234a0c4f9ca4b7e75fcc95f.png)
(2)曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d33de73c544db435e1d65d1df1731ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-01-16更新
|
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3卷引用:北京市昌平区2022届高三上学期期末质量抽测数学试题
名校
9 . 已知函数
且
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c696b637db97f1486fc6276789d93a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28b08682efa2692b052f64fe1448fce.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2022-01-16更新
|
1177次组卷
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2卷引用:北京市丰台区2022届高三上学期数学期末练习试题
名校
10 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)当
时,求
的单调区间;
(3)求证:当
≤
时,
≥
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5277f1862dd51c953084242775c5979.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953bfeb398bab2b2ba61b3e6bf0a22e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/771c5d3e7e824812b99ec5423c32ebc0.png)
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2022-01-15更新
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3卷引用:北京市石景山区2022届高三上学期期末数学试题