已知函数
在
处的切线方程为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb546dd9df8a413b7a2386b4fe4cc49a.png)
(1)若
=
,求证:曲线
上的任意一点处的切线与直线
和直线
围成的三角形面积为定值;
(2)若
,是否存在实数
,使得
对于定义域内的任意
都成立;
(3)在(2)的条件下,若方程
有三个解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14eabaeb11b1a93b9abcbc867ebbf138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb546dd9df8a413b7a2386b4fe4cc49a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e81e15b871dd32b2438ef8025bcc42d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1447dbe580ac5c825776995118e75acf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e7e2521bc77d291d6bcbd1195c865c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee956329e95a172d86c86b2f6af7aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d06a2b190d773176e6acf85dc15bce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)在(2)的条件下,若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8efd9aa5e62dd28cd3875e8750042a03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
2018高三上·江苏·专题练习 查看更多[1]
(已下线)2017-2018学年第一学期期末复习备考之精准复习模拟题高三江苏版数学试题(C卷)
更新时间:2018-01-06 13:58:31
|
相似题推荐
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐1】已知函数
,其中
.
(1)若直线
为曲线
的一条切线,求实数
的值;
(2)若对任意两个不相等的正实数
,均有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325cb5d7a2edc99c9bfcf39e6ffc7c5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed78bacb0e68d3eaf4143d03be16a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若对任意两个不相等的正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b32a7ae0bf8db53ecc873c5023155d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
解题方法
【推荐2】已知函数
.
(1)若直线
与函数
的图象相切,求实数a的值;
(2)若函数
有两个极值点
和
,且
,证明:
.(e为自然对数的底数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bbe412de9506fecbaf1d9ed8b83fc17.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2fdc6fa4e8a0b98223576452e81ee28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5be3af0c67a20bee47063487d305f2.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/7766006389ba796ddfebdfcc8913a5dc.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐3】已知函数
.
(1)若
时,直线
是曲线
的一条切线,求b的值;
(2)
,且
恒成立,求a的取值范围;
(3)令
,且
在区间
上有零点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a925c092b2b910b5db31b4fed16b4480.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce4430b8b9b0c78de693513a7f88915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43920f5171ed31db2520ef00e4c5fc24.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9395af40581559afb4bcacccef3b4776.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b4e7aafb01b2104404fc9f0e5205c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7794043915d9845652715cde11aa753c.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐1】函数
,
,其中常数
.
(1)若函数
与
有相同的极值点,求
的值;
(2)若
,判断函数
与
图象的交点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac2dfb591a060b2be60149cc584ec0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53cbfc0ac44d14d536f36004be822ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】已知函数
(
)
(1)若
在
处取得极大值,求实数
的取值范围;
(2)若
,且过点
有且只有两条直线与曲线
相切,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9739c2e4e0f0b2082450b2a79e4c1a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7569cd7e9b31ad838230133b9bc8314.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b7f202e492865ac4a92b7ba7a21a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22840186db0afc0e2b2e8915ce79b998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.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
是函数
的极值点.
(1)求
;
(2)证明:
有两个零点,且其中一个零点
;
(3)证明:
的所有零点都大于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea764080dd9860df23c7022ca914ea6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31ec7374ee26d32346f96ac1e03d2fd.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f13c1f9a7777c49671e1d6b4bb1e7f7e.png)
您最近一年使用:0次