已知a为常数,函数
.
(1)当
时,求
的图象在
处切线方程;
(2)讨论函数
的零点个数;
(3)若函数
有两个极值点
,
(
),求证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b356cd92f4e6a93c960d80fd9093e792.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/9b384412acba251d87902ab928902f16.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d1f322e164aeb5a7f3f28db6fbfd507.png)
更新时间:2024-04-08 10:26:11
|
相似题推荐
解答题-问答题
|
较难
(0.4)
解题方法
【推荐1】设函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)当
时,求函数
的极大值和极小值;
(3)当
时,证明存在
,使得不等式
对任意的
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be25af305bf18f9a149d8ef1bf64af52.png)
(1)当
![](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/7ea9824af71c9da5db5a00ec06063024.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2584d4e78881413d8ddd1ec84011db2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72798826461ed4e4053ab85befa7e51e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fe5ea0d7eb6fcf7bb3b8fdab205f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
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|
较难
(0.4)
名校
【推荐2】已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)讨论函数
的极值点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/949ba6cb189a0cd1fdaedcef80a532ba.png)
(1)当
![](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)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐3】已知函数
.
(1)当
时,求曲线
在
处的切线方程;
(2)当
时,
恒成立,求
的值;
(3)当
,
时,
恒成立,直接写出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f96ec440456a7717e95d5072b7cd0f7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c6b6a11760d0724b0b60e55970e229.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0dd18467feea8eb478f4669a32c2d57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b08f5fa971bb6852cf15acd85ea3061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f6df7c2507c2b54c1303055a16d2a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
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|
较难
(0.4)
名校
【推荐1】已知函数
.
(1)讨论函数
的单调性;
(2)已知
,若
且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c2593d39bd2b48cb4727a82c0aa609.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/020bf2b5a14c015cfca20b2aca53dd6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa5f4aadc17b6d5c9760a75fab7fb760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e87c42c3f974f2cfba1e55ee6aff872.png)
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解答题-证明题
|
较难
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解题方法
【推荐2】帕德近似是法国数学家亨利·帕德发明的用有理多项式近似特定函数的方法,在计算机数学中有着广泛的应用.已知函数
在
处的
阶帕德近似定义为:
,且满足:
,
,
,…,
.其中
,
,…,
.已知
在
处的
阶帕德近似为
.
(1)求实数a,b的值;
(2)设
,证明:
;
(3)已知
是方程
的三个不等实根,求实数
的取值范围,并证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab984fa2801f780e08903b339c9d041f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8ef6c18c8edf9f4c781376d5ce400a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6b902edcff913a34589487e17c9fe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db319ce4bf274c7e20d942273c46daa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/089b65749e52fc6346eab9bb5c49e5b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ce3529fc0ec32ea8d9e37f62cc0f00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060bbd94b5673e85e8c67d2b7dd117fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c325e9b5577f13065e28d81cee184b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e96546b3259afe4add331673fb835c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219e749ac6b88c5f6c976ab2aac825e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e63d4064f8a447d6ba79394bde3fbaa0.png)
(1)求实数a,b的值;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3358699aa00b906f3f0f49d0ffc74baf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0653af2580be1f987694252229f0fb.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55cb99e8795ca534c6272690402434ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33f29ea0c6867ebee7c40e0031f54e95.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐1】已知函数
.
(1)当
时,求函数
在
处的切线方程;
(2)若函数
在定义域上单调增,求
的取值范围;
(3)若函数
在定义域上不单调,试判定
的零点个数,并给出证明过程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c1433f285330a7286c89e6c76a8d09.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/9b384412acba251d87902ab928902f16.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
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较难
(0.4)
【推荐2】已知函数
.
(Ⅰ)当
时,求函数
的单调区间
(Ⅱ)设
,若函数
在
有两个零点,求
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c6a37d46f207202ecefc3b8b79a29f.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e9222ffc26c0e6bfbf252ab5d8a520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34a2a88ee844468fd2a1dc325e3ecc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9f2eb736fa888bff739b8d8362edb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
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较难
(0.4)
【推荐3】已知
(
).
(1)当
时,求
的单调区间;
(2)函数
有两个零点
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
①求
的取值范围;
②实数
满足
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d0ff7ac083b888d0055e49bf130a6e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac4cd70e8be4765a5f568ae9fc15fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次