名校
1 . 已知函数
,
.
(1)求函数
在
的最小值;
(2)若函数
与
的图像恰有一个公共点,求实数
的值;
(3)若函数
有两个不同的极值点
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3b6c56aee4bb8a8131fd960415c745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542855d841442d6171e76947f9acbf84.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8267d07de45e2614d24d53e28d50f1d0.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/753ddd380ed18f61bf76d52e1f3dc6ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dae74c724114bfeff024dd7b79f5edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3639c1022e130223db1596d93a125f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-04更新
|
1607次组卷
|
3卷引用:江西省上高县第二中学2016-2017学年高二第七次月考(5月)数学(理)试题
2013·江西南昌·二模
2 . 理科已知函数
,当
时,函数
取得极大值.
(Ⅰ)求实数
的值;(Ⅱ)已知结论:若函数
在区间
内导数都存在,且
,则存在
,使得
.试用这个结论证明:若
,函数
,则对任意
,都有
;(Ⅲ)已知正数
满足
求证:当
,
时,对任意大于
,且互不相等的实数
,都有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0506b5763f06f6ae9dfa8c6d104a1c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅰ)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0506b5763f06f6ae9dfa8c6d104a1c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68a1147fd7289d45ecd47bb0b42707d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f649784a05e98b05dac141227c72e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c0588ae41d01b164bf1aaffeadad2ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a718ce8b0d35d734c1f21248d925b93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2a133c5814447729d4065414d8cb0fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/741c9f67009ffda2bab297ba3e4fb4b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7856ee6dd4ec9d77d24e2c138fd4ec.png)
![](https://img.xkw.com/dksih/QBM/2013/5/7/1571205295046656/1571205301100544/STEM/2acebd3106434e11886e5565d26732ff.png)
![](https://img.xkw.com/dksih/QBM/2013/5/7/1571205295046656/1571205301100544/STEM/6dbee9eb63824c0bbeb211f8e65031e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece1cabeedc0da3de06bd8b7753cdf52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aeb9164a010e37929d910a08523e2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf1f029bb36d7d199ed2b782490c424.png)
![](https://img.xkw.com/dksih/QBM/2013/5/7/1571205295046656/1571205301100544/STEM/ea87558e0c74427ba4ed0e0bb16c5170.png)
![](https://img.xkw.com/dksih/QBM/2013/5/7/1571205295046656/1571205301100544/STEM/8f9efb8e96184b5083a84185fb7866c2.png)
您最近一年使用:0次