已知函数
.
(1)求函数
的极大值;
(2)设实数a,b互不相等,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0c4b98d66f6fb0e250cd94dc9fb8cc.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设实数a,b互不相等,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530a664e40a51a906ac10e44ff360807.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4a79abd57efe91290d8fbfab20e3819.png)
21-22高三上·江苏常州·期中 查看更多[4]
江苏省常州市2021-2022学年高三上学期期中数学试题(已下线)专题3-7 导数压轴大题归类:不等式证明归类(2)-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)福建省厦门大学附属科技中学2022届高三12月月考数学试题江苏省连云港市灌云高级中学2024届高三上学期12月月考数学试题
更新时间:2021-12-03 20:41:48
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【推荐1】已知函数
.
(1)求
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(2)证明:
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a6cfd9baa225413da19dda3bcbec93.png)
(3)若函数
有且只有三个不同的零点,分别记为
,设
且
的最大值是
,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595d5671c9bc42f470dbed945c294197.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a6cfd9baa225413da19dda3bcbec93.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15884ba8957cab8868422a174a197d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94bcf5e2aead93fe64b8210736492401.png)
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【推荐2】已知函数
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(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
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【推荐3】已知函数![](https://img.xkw.com/dksih/QBM/2016/11/3/1573116099321856/1573116105637888/STEM/612f9575c3644974a74794cab2f31184.png)
.
⑴当
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在区间
上的极值;
⑵当
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⑴当
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⑵当
![](https://img.xkw.com/dksih/QBM/2016/11/3/1573116099321856/1573116105637888/STEM/4d8a8d4589f244a1970669c0fe970380.png)
![](https://img.xkw.com/dksih/QBM/2016/11/3/1573116099321856/1573116105637888/STEM/3f5d3973df6245feb13a62a396047a58.png)
![](https://img.xkw.com/dksih/QBM/2016/11/3/1573116099321856/1573116105637888/STEM/1ea2e28764c4407e811b69bf6d77b55d.png)
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【推荐1】已知函数 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634f7efbbe5f523e690e38471d1b1d70.png)
(1)当
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(2)当
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【推荐2】已知函数
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(1)若函数
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【推荐2】已知函数
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