(1)证明:当
时,
;
(2)已知函数
在
上有两个极值点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44658a47cc113e8fe2caf29eb4d95f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a35e5060c242f7d8eeba3b2ef21504d9.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e92437ad44dc24c75ff808348a0983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f385eacc118fe9b5f0c23182929d6a50.png)
更新时间:2024-05-27 09:32:34
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解答题-证明题
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适中
(0.65)
【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9405eef37389ab97ecb535efe69788.png)
(1)若
时,求函数
的单调区间;
(2)当
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.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9405eef37389ab97ecb535efe69788.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f88a76f947e7022ef0c5efd6db060c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9db846dfdc0b229d285ee5c99e09e2.png)
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解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐2】已知数列
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,当
时,
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.
(1)求数列
的通项公式;
(2)求数列
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(3)若数列
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.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
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(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96b250e4276bf3f328b03a66765541f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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【推荐1】已知函数
.
(1)若函数
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(2)若函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f758239aa82ed8788cb3f60813b3078.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/371a9f8fe214b8f6b6f541f805c2f1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/694c99143dcd6fdc8138efa03d0c3350.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b6fc02b5fef923c6c60b85613af810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d3cf25a36525574244a99f9932f71a7.png)
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【推荐2】已知函数
,曲线
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(1)求a的值;
(2)函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b6690ddc40697eefd6cb4fdedfa4a7.png)
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适中
(0.65)
【推荐1】已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
,其中
.
(1)若
在
处取得极值,求实数
的值.
(2)若
在
上单调递增,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3f5e7bb3b32aa5c3412ed0c07f7d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113cc2eb1633f22868d0f178b7dbdd74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
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适中
(0.65)
名校
【推荐2】已知函数
存在两个极值点
.
(1)求
的取值范围;
(2)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9674294ade55d578663f4945366ed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b6ecd23ea486e1c0cb10915c834c11a.png)
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适中
(0.65)
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解题方法
【推荐3】已知函数
,且
在
处取得极值.
(Ⅰ)求b的值;
(Ⅱ)若当
时,
恒成立,求c的取值范围;
(Ⅲ)对任意的
,
是否恒成立?如果成立,给出证明;如果不成立,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7000aabdb9de2f025261d7e95275907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(Ⅰ)求b的值;
(Ⅱ)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6070f2ee5e48cce77eb4a2cb9f11ccfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190a670794c40368119afdcc98341f76.png)
(Ⅲ)对任意的
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ec783a91f4471ce8a21a9bf894ef57.png)
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