已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3432393ae8cf7406b2a107fe2d483b0d.png)
(1)判断函数
在区间
上零点的个数;
(2)函数
在区间
上的极值点从小到大分别为
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e3d74bc831a959f5d2a2b016548eba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3432393ae8cf7406b2a107fe2d483b0d.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d111cf6ab2271b6dac1ab7d7bf076e.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d111cf6ab2271b6dac1ab7d7bf076e.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/147f89995c5aa07ce7f797c308c9c7d2.png)
更新时间:2019-11-30 17:29:42
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解答题-证明题
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名校
【推荐1】已知函数
.
(1)当
时,求
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(2)若
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,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d669cb01d76cc9ffb2a768dc0abe4a44.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c532b5af7b88f1c21a7584cfac5fea6c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a430f319b62d13c7d86f2eee1815673.png)
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【推荐2】已知函数
的图象经过点
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(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)求函数
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【推荐1】已知函数
是定义在
上的偶函数,且当
时,
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(1)当
时,求
的表达式;
(2)求
在区间
上的最大值
的表达式;
(3)当
时,记
,试求函数
的零点个数.
![](https://img.xkw.com/dksih/QBM/2016/7/28/1572945867087872/1572945872871424/STEM/467cfd8368094b9bb1b8e479a9b4bcf4.png)
![](https://img.xkw.com/dksih/QBM/2016/7/28/1572945867087872/1572945872871424/STEM/fa6f28e46a904cd3a00839fb856788d2.png)
![](https://img.xkw.com/dksih/QBM/2016/7/28/1572945867087872/1572945872871424/STEM/d997a850e812446eb01c53749c606caa.png)
![](https://img.xkw.com/dksih/QBM/2016/7/28/1572945867087872/1572945872871424/STEM/22b0e4a3b4104fae95c806b6d356cb36.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2016/7/28/1572945867087872/1572945872871424/STEM/49930c4d50b64d28877f61d35e3f43fc.png)
![](https://img.xkw.com/dksih/QBM/2016/7/28/1572945867087872/1572945872871424/STEM/467cfd8368094b9bb1b8e479a9b4bcf4.png)
(2)求
![](https://img.xkw.com/dksih/QBM/2016/7/28/1572945867087872/1572945872871424/STEM/467cfd8368094b9bb1b8e479a9b4bcf4.png)
![](https://img.xkw.com/dksih/QBM/2016/7/28/1572945867087872/1572945872871424/STEM/68668b32d59642c48522d23e8c2ec6d5.png)
![](https://img.xkw.com/dksih/QBM/2016/7/28/1572945867087872/1572945872871424/STEM/abfd44d45a3345fb95e3f73853439203.png)
(3)当
![](https://img.xkw.com/dksih/QBM/2016/7/28/1572945867087872/1572945872871424/STEM/65881e6708754f29ad4e7dd95e41a7ed.png)
![](https://img.xkw.com/dksih/QBM/2016/7/28/1572945867087872/1572945872871424/STEM/8c882486a9ee48e1a5f7dd2f89b6fe57.png)
![](https://img.xkw.com/dksih/QBM/2016/7/28/1572945867087872/1572945872871424/STEM/0987ab05f66548659a006416df737440.png)
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名校
【推荐2】已知函数
.
(1)若
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbdd006d6c6aa4c00282f564718a03a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27bc4db67175d312aded75cec1b60605.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddea382d8bece5514a9cbd6a225667e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c5fcf79df116418ab64cdd3c12d713f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d979df31f9c7ddfaf2c1be2863626854.png)
您最近一年使用:0次