已知函数
(
)
(1)当
时,比较
与
的大小;
(2)若
存在两个不同的零点
,
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e507f3e1c44c42ee8bd8cc63808f41d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3882fd82c321d981b049e52eba209ed.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c7d5aee3615cdb65b3dd4e24da7bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73df8cd08c26b29a499d41abbc3d0810.png)
(2)若
![](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/b0adb12fef603e4a1b6a8a72732e1ccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6360e9ff0954a19a8fa122038ae138e8.png)
更新时间:2022-07-15 10:34:26
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【推荐1】已知函数
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(2)解关于
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(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
(2)解关于
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(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee04cc7d647e23c522c0e7af3b405575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
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【推荐2】已知函数
,
,
.
(1)判断
的单调性;
(2)若
有唯一零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2b97bf1625dc6e03b1c7740245e4e5.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d217c7b12e12e5fb67472452518859ec.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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名校
【推荐3】已知函数
.
(1)若
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/580bc4caf016646b3832dc7663ba786e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209936910c4936d10ec1a90d66fb2355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aec362e62444e2a7bf8f6d60cd67bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐1】已知
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(1)当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c765461ae1a6c70f5cbdcb6c932a22b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
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解题方法
【推荐2】已知函数
(
为非零常数),记
,
.
(1)当
时,
恒成立,求实数
的最大值;
(2)当
时,设
,对任意的
,当
时,
取得最小值,证明:
且所有点
在一条定直线上;
(3)若函数
,
,
都存在极小值,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4187aadeb68df93870c9e416ad7244c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7708ba23f01d33c69df8ea236c876f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95b8ae9ec829851d83bfb73429ee8009.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe24ccc3dd4dbadd2f757cf7b7a44a6e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d413c25f6271c3b97a668dc47b8d7de.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104b081cfbc9120b476831c79a749c1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bffc9c4bf9de4d804885955aff039ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/548636534994cd465dfc7bf7dd41505b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
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较难
(0.4)
【推荐3】已知函数
.
(1)求函数
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满足
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe3542b635afd3dbb1105ca151c166c.png)
(1)求函数
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(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf7b339246d52b29603d33c152f44de1.png)
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