已知函数
.
(1)若
,求曲线
在点
处的切线方程;
(2)若方程
有两个根,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff126b47618c306dfa0c06817ccf8ce4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868a4cf0549507ca5f2a18b2d1070085.png)
21-22高二下·河南·开学考试 查看更多[6]
河南省许平汝2021-2022学年高二下学期开学考试文科数学试题宁夏平罗中学2022届高三下学期第三次模拟数学(文)试题辽宁省重点高中沈阳市郊联体2021-2022学年高二下学期期中考试数学试题(已下线)专题3-6 利用导函数研究方程的根(函数的零点)-2(已下线)上海市静安区2023届高三二模数学试题变式题16-21陕西省渭南市蒲城中学2022-2023学年高二下学期期中文科数学试题
更新时间:2022-03-27 15:28:35
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解答题-问答题
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适中
(0.65)
【推荐1】已知函数
,其中e为自然对数的底数.
(1)求曲线
在
处的切线方程;
(2)证明:
在
上有两个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb95eca4f0793820776d74c764198b5c.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe86cace140f2c3588ab115837bbfc9e.png)
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适中
(0.65)
名校
【推荐2】已知曲线
.
(1)求曲线
在点
处的切线方程;
(2)求与直线
平行的曲线
的切线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7411ebd1d37c5c284fc967a5635858d2.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4848a0f1326eef03a92ec09a9a75c6ae.png)
(2)求与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b13a19c612add3c0d70d32b885b63de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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解答题
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适中
(0.65)
【推荐3】已知函数
,且
.
(1)当
时,求曲线
在点
处的切线方程;
(2)求函数
的单调区间;
(3)若函数
有最值,写出
的取值范围.(只需写出结论)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77db3302c5bf086ba4b32f49564ce39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2c84e7b41a841a230ed5f8a42309aa.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
【推荐1】已知函数
,点
在
的图象上.
(1)求曲线
在点
处的切线方程;
(2)设函数
,求
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/979e07fea225d04fde91cb72276a79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f350245acf73079c1e2d8f6d0eba590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b26c416363ab2a9ed000b429540db55e.png)
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解答题-证明题
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适中
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名校
【推荐2】设函数
(x∈
R,实数a∈[0,+∞),e=2.71828…是自然对数的底数,
).
(Ⅰ)若f(x)≥0在x∈
上恒成立,求实数a的取值范围;
(Ⅱ)若ex≥lnx+m对任意x>0恒成立,求证:实数m的最大值大于2.3.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe4e6f36cb28d1979befe459c992ae2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9332d8eb1eecec2f2b586841de0bec94.png)
(Ⅰ)若f(x)≥0在x∈
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(Ⅱ)若ex≥lnx+m对任意x>0恒成立,求证:实数m的最大值大于2.3.
您最近一年使用:0次
解答题-证明题
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适中
(0.65)
名校
【推荐1】已知
.
(1)若函数
,求
的单调区间;
(2)若过点
能作函数
的两条切线,求实数
的取值范围;
(3)设
,且
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059339aaa184f16da14ba10eb320fccf.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de2f7af12c71dbdc8d9502198f39d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad29801f799532ee7dda9658c30e373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd0ae451f9ba273fbd6823cbf2aeec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/537e917a958a5266abfb2334d0a33ee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/858dc316908539c2f0a2bd12b264ba2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fbb626c8bbc1c705d44d7ed8eacd370.png)
您最近一年使用:0次
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|
适中
(0.65)
名校
【推荐2】已知函数
.
(1)若
,求曲线
在
处的切线方程;
(2)若函数
有两个极值点,求
的取值范围:
(3)已知函数
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4f1568f732937ada9c83b74d4a2d8a.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/bb45f673c56a289ea78831c9237e8d20.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829c83ec65fdd491f3cb6046bb526a7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c04bd9759565e4cd93839a2ce2b31b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
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适中
(0.65)
【推荐3】已知函数
,
.
(1)当
时,求
的单调区间;
(2)当
,讨论
的零点个数;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ccf7747f709fc42c3937f874622727.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20476b1069bb94ff073444eb038bf757.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次