已知函数
的最小值为1.
(1)求实数a的值;
(2)若函数
,数列
满足
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da86c33fca8699b4236f19a10de2f48.png)
(1)求实数a的值;
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68072473a5106f93e3026d992859f7a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a7976b76536f5e5464301d23763d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfb19f0c37a72b33083ae9319f11a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c48b54115d17c82c1bd2140155831c.png)
更新时间:2024-02-06 18:02:52
|
相似题推荐
解答题-证明题
|
较难
(0.4)
解题方法
【推荐1】已知函数
,当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e6b4fd7ea9ebef26c80081aece3cdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5f421939ee855f25927e7570d82c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2868fc8e6dc8e0b15a381649a7bd5532.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
【推荐2】已知函数
.
(1)若函数
在
时取得极值,求
的值;
(2)在第一问的条件下,求证:函数
有最小值;
(3)当
时,过点
与曲线
相切的直线有几条,并说明理由
注:不用求出具体的切线方程,只需说明切线条数的理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7d28dc486d8f9351e183a57020a28f.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0997aef37c85b3b959a948673bf65490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)在第一问的条件下,求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1f822318127dd4d98dcb196bf003e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a301324443eb93b467134a86890dd9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.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1】已知函数
的最大值是
.
(1)求实数
的值;
(2)设函数
,若
,使
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dfcbb605fb5c0c117fcb73a274656b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11df92f86c97ed3aa0e153a19e28fbb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35eac3ba2858adffcd1f8052cd795269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2654e159f9f96ba8862582fb648778d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
【推荐2】已知函数
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若对任意
,都有
,求
的范围;
(2)求证:对任意
及任意
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfdb848d4a27bc9e56d550ae010b1bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51701fa130d449248e959e56d2d7d542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求证:对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37c84b49231d0344d0813a7bbd2acdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17af43cc460a6a7010d51a0c9403d67.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
【推荐1】已知函数
.
(1)若函数
的极小值为0,求
的值;
(2)
且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da3209dff6bbdde2d918e9a8451ec7bf.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183c9869a29bb7e3e50886e6f1b59fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fe2115d883d13561e28006d3f6143b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8844c5f9b2f649189fe1a1dbc7dd1654.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐2】已知函数f(x)=lnx﹣x2+ax,g(x)=ex﹣e,其中a>0.
(1)若a=1,证明:f(x)≤0;
(2)用max{m,n}表示m和n中的较大值,设函数h(x)=max{f(x),g(x)},讨论函数h(x)在(0,+∞)上的零点的个数.
(1)若a=1,证明:f(x)≤0;
(2)用max{m,n}表示m和n中的较大值,设函数h(x)=max{f(x),g(x)},讨论函数h(x)在(0,+∞)上的零点的个数.
您最近一年使用:0次