设函数
.若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8f782d7db1dce10a6d765e7d15c98a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d1540b6b10f07a867618a1eec02e2a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce2671bd4b753b489fbf1dc997d1173f.png)
2024高三·全国·专题练习 查看更多[1]
(已下线)专题8 导数与拐点偏移【讲】
更新时间:2024-05-25 21:46:51
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解答题-问答题
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解题方法
【推荐1】设
,
.
(Ⅰ)当
时,求曲线
在
处的切线的方程;
(Ⅱ)如果存在
,使得
成立,求满足上述条件的最大整数
;
(Ⅲ)如果对任意的
,都有
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0308bf45d7893b66fd25e322835cb4d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c699778c1f92e2d975ac67c104d3fe.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(Ⅱ)如果存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9331df9c46ceb8f74f4cd7535e4b30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30f6fbb6f8133c81b5a61b91ad796df5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(Ⅲ)如果对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9f0a52d1106a0c30d08ba59599094a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf80f9cf72a90e6a974a9b634f06887.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)
解题方法
【推荐2】已知函数
,
(1)求
的最大值:
(2)已知
,若对于任意的
.不等式
恒成立,求整数
的最小值.(参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f06495bda4617340d809fb64cc300fe.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3755484f62cc0e44109e364d5bafde86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c0309456de2cd6420ece4fbc5eeddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9405361d7be3c9e4d462a4e955d8fe3c.png)
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【推荐1】已知函数
,(
且
)
(1)讨论函数
的单调性;
(2)当
时,证明:
;
(3)
,若
在
上恒成立,求实数
取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9f7cb75c5500ad56dfe0f178dedb92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/257810d08006d4b886331966c99767ea.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a6b78d56da43f532804f9d239f9b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea0a2a1ebc67f3f8cf87d6ddc4285168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97179eb63fcb5aed0b2354c97c8f70ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-证明题
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【推荐2】设函数
.
(1)若
最小值为0,求
的范围;
(2)在(1)的条件下,令
的图象上有一点列
,若直线
的斜率为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ecf5f4b9f7687e6fe8e20edef6cef4b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)在(1)的条件下,令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc7c41fdade7b1756ebd8f637e8b092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6074ab26754faa225b4a5508a16ab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/425f3ce645095842006c80a509268f85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/488e9eb082f829bebb465ee78a27d0bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1de2de8de769c56e9e49751596a1ac74.png)
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