已知函数
.
(1)求
的最小值;
(2)若不等式
对任意的
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a55483b95132afc41f62ddb052a4ffe2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb1c21c0575293eb610f1b962bdc2710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
更新时间:2022-02-15 12:11:40
|
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
.
(1)求曲线
在点
处的切线方程
(2)若对
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb851d6f4ab9fad9016b3581b38c8351.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33d41d398944a02f613784ff1ceeaf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52458afae1c1ccf7a259d8d493be9471.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)
【推荐2】设函数
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)讨论
的单调性;
(2)①若
,求
的最小值;
②求证:
.
提示:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31b4bf28a8821e3b58f01ebc5ed3495a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac077e05af39e1295cbfc72c79e8cea1.png)
提示:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91852977c45ddededa5f091ce7dca64f.png)
您最近一年使用:0次
解答题-应用题
|
较难
(0.4)
名校
【推荐3】甲、乙两人进行对抗比赛,每场比赛均能分出胜负.已知本次比赛的主办方提供8000元奖金并规定:①若有人先赢4场,则先赢4场者获得全部奖金同时比赛终止;②若无人先赢4场且比赛意外终止,则甲、乙便按照比赛继续进行各自赢得全部奖金的概率之比分配奖金.已知每场比赛甲赢的概率为p(0<p<1),乙赢的概率为1-p,且每场比赛相互独立.
(1)当
时,假设比赛不会意外终止,记比赛场次为随机变量Y,求Y的分布列;
(2)当
时,若已进行了5场比赛,其中甲赢了3场,乙赢了2场,此时比赛因意外终止,主办方决定颁发奖金,求甲获得的奖金金额;
(3)规定:若随机事件发生的概率小于0.05,则称该随机事件为小概率事件,我们可以认为该事件不可能发生,否则认为该事件有可能发生.若本次比赛
,且在已进行的3场比赛中甲赢2场、乙赢1场,请判断:比赛继续进行乙赢得全部奖金是否有可能发生,并说明理由.
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f970f380a12c843bb4a74ff34a15b2ac.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f970f380a12c843bb4a74ff34a15b2ac.png)
(3)规定:若随机事件发生的概率小于0.05,则称该随机事件为小概率事件,我们可以认为该事件不可能发生,否则认为该事件有可能发生.若本次比赛
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e822d50156a67367bad31440d3ce2b8.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
(
).
(1)当
时,求函数
的极值点;
(2)若函数
在区间
上恒有
,求实数
的取值范围;
(3)已知
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc09011cb2f74f8df1e3474de085d89f.png)
,在(2)的条件下,证明数列
是单调递增数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b83999ea4af6f3c1ed6b705d7c414e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6666d29a14e23f193b708b828645cf23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec26e45ae36c71ee9761a05e734dde1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc09011cb2f74f8df1e3474de085d89f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53ca7df5f8a79e551701fce40355d088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.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
,且
为函数
的极值点.
(1)求实数
的值;
(2)若当
时,存在实数
使得不等式
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1632ddc12c200cf9b1d646cec38716c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/626d8e8bba19df463a1b6f4e4d2377cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ef9b5cad5072cd7cdcea92ea135748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.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
其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7135fe21e4aae80d801d96fbc45a87.png)
(1)讨论
的单调性;
(2)若
,求
的最大值;
(3)设
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4146139d1e1dcb5fa670ff7be6cf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7135fe21e4aae80d801d96fbc45a87.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c91713b190f3cfd59d838f38c74579.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
,
.
(1)讨论函数
的单调性;
(2)若函数
有两个极值点
,
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a635335e34b87158843f37a14babd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)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/1619f4f451d8c9da82290e4aa139c441.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐3】已知函数
.
(1)讨论
的单调性;
(2)设
,当
时,
,求
的最大值;
(3)已知
,估计
的近似值(精确到
).
![](https://img.xkw.com/dksih/QBM/2016/2/17/1572484645052416/1572484651376640/STEM/452f5d7ddfed422cb3eb236c6c44687e.png)
(1)讨论
![](https://img.xkw.com/dksih/QBM/2016/2/17/1572484645052416/1572484651376640/STEM/b066181cd00045efb34b084174d106c4.png)
(2)设
![](https://img.xkw.com/dksih/QBM/2016/2/17/1572484645052416/1572484651376640/STEM/a9671dbe03eb4f2ca2cb9a4f7c227890.png)
![](https://img.xkw.com/dksih/QBM/2016/2/17/1572484645052416/1572484651376640/STEM/76391dd5829249aca0fd37c2635f6b04.png)
![](https://img.xkw.com/dksih/QBM/2016/2/17/1572484645052416/1572484651376640/STEM/853019bd10c8446aa02d4172cbd1d641.png)
![](https://img.xkw.com/dksih/QBM/2016/2/17/1572484645052416/1572484651376640/STEM/5b6ee999b1a344a6864d7738d09b709a.png)
(3)已知
![](https://img.xkw.com/dksih/QBM/2016/2/17/1572484645052416/1572484651376640/STEM/de6467101b0f450fb5cdc24a3702ce6c.png)
![](https://img.xkw.com/dksih/QBM/2016/2/17/1572484645052416/1572484651376640/STEM/d56be541393b4e17acff9ba0af6aad62.png)
![](https://img.xkw.com/dksih/QBM/2016/2/17/1572484645052416/1572484651376640/STEM/a641f37f199e4d3490c3d978684b964f.png)
您最近一年使用:0次