设函数
.
(1)求函数
的单调区间;
(2)设
,
是否存在极值,若存在,请求出极值;若不存在,请说明理由;
(3)当
时.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b614cf5dd093d2dcad7e25bcaeb7cb4.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c86c569d50e83cfa6101949049ca5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2945ba31a75dee30d9f2433618a1a276.png)
更新时间:2017-05-17 13:24:32
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(0.15)
【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cba02d2d4c86130536b2d1b95347fc0.png)
(1)当
时,求函数
的单调区间;
(2)若
,设
的最大值为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cba02d2d4c86130536b2d1b95347fc0.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fc543b8d8afb49aaadaf828b982c61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
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【推荐2】设函数
,曲线
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(1)求
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(2)设函数
,求
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(3)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00b95002d09435b4da5fd01c74c66e38.png)
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(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585de67a3fc494297d375d339af6d153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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名校
【推荐1】已知函数
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(1)当
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70fdc97bbb8ea29ab33359c6448dd445.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cc051b041564fdf115913357358298f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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解题方法
【推荐2】已知函数
,其中
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(1)若
,求函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7ab8a8b9d4472b0dba43fffb617c785.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3077b0cfb8a47439afc656af6cc889ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17af43cc460a6a7010d51a0c9403d67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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困难
(0.15)
【推荐3】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c575784d69dd7c41f4856098f68aa44.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d37dafb12565279285111a5948d835b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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(0.15)
【推荐1】已知函数
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(1)若曲线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19c23cae58b1b3a67d442713e79b0b15.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4921923069c4f38a0af1ff8637e35b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/000c8eeee025a5abf590f614e17c7891.png)
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解答题-问答题
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困难
(0.15)
解题方法
【推荐2】已知函数
,
.
(1)求
的极值;
(2)证明:当
时,
.(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b923fcc6830f02925f594edcb9fcc90c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6bcf1135449e1c9bb97f6927aa55b3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08cd1568daf759620e6842d75d88d558.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9405361d7be3c9e4d462a4e955d8fe3c.png)
您最近一年使用:0次