已知函数
,
,函数
的图象在点
处的切线的斜率为
,函数
在
处取得极小值
.
(1)求函数
,
的解析式;
(2)已知不等式
对任意的
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c97bb437f1b1904f3487c1df9caeac35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/486019ed706222a1fc270910fe2986c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c475f1a6e75369352ab6b054a517e1.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)已知不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23cb41d19ec88ae9e5757c64e3cd6f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaae91ed6da60e86e3bb9b3eb7e03e60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
更新时间:2018-04-06 10:51:14
|
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解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知函数
的图象如图,直线
在原点处与函数图象相切,且此切线与函数图象所围成的区域(阴影)面积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/27/79a31527-7395-4d13-9f51-1d773c32187d.png?resizew=239)
(1)求
的解析式
(2)若常数
,求函数
在区间
上的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b269dce1ae3396d2afc82a91dc6f97ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d876c494a89de1b52f19d07b362106c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/27/79a31527-7395-4d13-9f51-1d773c32187d.png?resizew=239)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ec9d0f2e9d84337d0a5b7f90b9d184.png)
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【推荐2】已知函数
在
上的最小值为
.
(1)求a的值;
(2)若函数
有1个零点,求b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2991a43705b828fdebef174b5adffbe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304226ca50149b49702928e44d565964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf3f23bfec394769b4670962b219999.png)
(1)求a的值;
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7fa3249ded82cf23bebe5d4617aae2.png)
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【推荐1】已知函数
,
.
(1)当
时,讨论
的单调性;
(2)当
时,不等式
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f268e1216e515aee10c70f628265f7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e90913bee9e9e1e0795e155a83ca75e1.png)
您最近一年使用:0次
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解题方法
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2762dff34ada396d5d7f1b804c77d5e2.png)
(1)求
的极值;
(2)若
,
,
,
,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2762dff34ada396d5d7f1b804c77d5e2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731bdc8d2686a05f12a2ba8a7e3b01be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2958030ec9d7543dda1f529593a915e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5631555a2e6fb5dcbc159f9d399f47e2.png)
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解题方法
【推荐3】已知函数
.
(1)对于
,
恒成立,求实数
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时,令
,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22099f9a8fb252e06e8dc5a17c1ab1fc.png)
(1)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7b69e93488fcd2a195cb9793e94fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.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/92b98281837a2fe9c3b36fecedf4f59f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
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适中
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【推荐1】已知函数
,
,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/841768dae9e7c0d78f6ec8e66b5b0e41.png)
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(1)求函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5416f5cb559e69a2df6d819de51aba2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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(0.65)
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解题方法
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e65ec3116eea684fc3a7137ec12e7b7.png)
(1)当
时,求
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(2)证明:当
时,在区间
上,不等式
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e65ec3116eea684fc3a7137ec12e7b7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/588e4f3d71158c22156afc4c4e0cad58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0b6ca237b90b49a91d9d74d007efdc.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad71d89cb1213d8796e1ee84fd171e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79fe3414b32bbd1190b41ed8307f905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6baf737e94c6c52e842c742690e482b.png)
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【推荐3】已知函数
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(1)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0df6f608c6b1e9852d48743582d66ce.png)
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(0.65)
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解题方法
【推荐1】设函数
.
(1)若
是
的极值点,求
的单调区间;
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c16960a6a0930f3385e1ddb65605105a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/256f3981024e53f373a80aad40e994ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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(0.65)
解题方法
【推荐2】已知函数
在
时取得极小值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c7f06e7a8e6e3b216650b121b562505.png)
(1)求
的值;
(2)令
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d523262349ef05ca8b2bb2a5edd968e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280878aa2e6d5580178cc6c99229b9ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c7f06e7a8e6e3b216650b121b562505.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10374d0f678bb5ff86d88756065ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52bb01c98cd9f14d60f5dcc081086255.png)
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