已知函数
,
.
(1)讨论
的单调性并求极值.
(2)设函数
(
为
的导函数),若函数
在
内有两个不同的零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e452e0b03cb06bfbf8865146b8df63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2d3cece966e43b516dda29a8da86ec3.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b4b7fddfba71bb09e7e5ab7f1a2f213.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22add663bd26e87d972a10dc5fd9ada1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
2023·广东揭阳·模拟预测 查看更多[6]
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更新时间:2023-09-10 20:38:47
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适中
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解题方法
【推荐1】已知函数
的最小值为1.
(1)求实数
的值;
(2)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c207efd83d75c1f69237d97616c726.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dc8b31b70d0a45f4f2638af45b9f06b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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(0.65)
名校
【推荐2】设函数
,
(
且
,
),曲线
在点
处的切线方程为
.
(1)求
的值;
(2)若对任意
,
与
有且只有两个交点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2276debf705eafefd578573b329b8ead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa8366eef01be97f48624409c5d25a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fe2115d883d13561e28006d3f6143b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a51fe74d3a239f762e2e1784f62e3e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a32954848804852a78d03feaf3a55c1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18355f016a1a77b8204c668392d07ebf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6832b496c0b8bb79351ddccc279a719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a2e5749d0a6e895187bb3cff9c9445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a1d642536351adb6a11b8e48543d7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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(0.65)
【推荐3】已知函数
的图象过点
,且函数
的图象关于
轴对称.
(1)求
的值及函数
的单调区间;
(2)若
,求函数
在区间
内的极值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66803db177109f4aad547d3822e0656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd043f2a032c97ffe0f58db5f2f9a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d322cc1af066d2732a7d2f16e3147c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0877194ab8760f54c35527177b03ff93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d738d51933aedc43d19c54edabd5454c.png)
您最近一年使用:0次
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适中
(0.65)
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【推荐1】设函数
.
(1)若
,求
的极值;
(2)若
,求
的单调区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17306cfd7d883b4b07649dd034b57602.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
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适中
(0.65)
名校
【推荐2】已知函数
.
(1)当
时,求函数
的极值;
(2)当
时,讨论函数
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d18d358027300f1ea2952904c2c990ae.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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适中
(0.65)
名校
【推荐1】已知函数
.
(1)讨论
的单调性;
(2)若函数
有两个零点
,求
的取值范围,并证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/620809df01729bc526807d556a5e2b65.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0f96b88c346f396d9bbc65ad44d738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3ad8c843c361565d0f3cb06da49f60.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐2】已知函数
.
(1)若曲线
在点
)处与
轴相切,求函数
的零点个数;
(2)若
,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9417bd5ab7d19a64b500d7f793ee471.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e409849c921f4868c5a78abffb9f74bb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe45f0c0592df42c7d3bc91ab4ba8db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0601f908e28279180600d83c8f86b8a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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