已知函数
的一个极值点为
.
(1)求函数
的极小值;
(2)若函数
,当
时,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6912c6e4184d157d4ca474ab6982b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50fbe39b5d65c35b1c73dac22510c69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3962f8ea88ff244b5a987df638556d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e5d1c43ff1d97fe6f5283293da306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2022-05-27 09:07:48
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解答题-问答题
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(0.4)
名校
解题方法
【推荐1】已知函数
,其中
.
(Ⅰ)若
,求函数
的极值;
(Ⅱ)设
.若
在
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41033c3f16819149c911528526e11c24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92634a7daabf9bce925f0d7507ea7526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e923547f733061e733d6ecb0fac6c8c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79fe3414b32bbd1190b41ed8307f905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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(0.4)
解题方法
【推荐2】已知函数
.
(1)若
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垂直,求
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(2)设
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,抛物线
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,若对任意
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e6adf3a3caed3ddd73b23416ba5755.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8095fdb64e12a270cb61135e29507f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1be7302f2e9ff02fee3fcf26e77b1c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b8f7fd7368e184037e99934ee9171be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1be7302f2e9ff02fee3fcf26e77b1c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30e452b96dc36b30641488388e77851e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac67e9a909472ab852d38d2ec66a1e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次
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【推荐1】已知函数
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(2)设
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a78a743f1ed8808c61f93f69d4a73779.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95a2bc02f96a502d8ac96a71709226d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d9c7a8587231b9116ab820a53b984e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef3046c9dd39b87b1e056cafff1d3a3.png)
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【推荐2】已知函数
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(1)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0dd9ac4cdc10c6cb4165b1051e6cbf1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42eba0413c76d1ec59e9aa847a8e64b4.png)
(3)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfc0602b704c4cef4b02af46825ee52c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d1916f8c7feddcfda0b7fdf8b97773f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c03f23e921ad62612d1f0a00dac971.png)
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
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【推荐2】已知函数
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的最大值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b735944dfec6912b9c4152b8b0fbb3a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐1】已知函数
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(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880a0146023767282bffe07f7c22f613.png)
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