名校
1 . 已知函数
.
(1)若
,求
的值;
(2)若
,用函数单调性定义证明
在
上单调递减;
(3)设
,若方程
在
上有唯一实数解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1d09168c3b90d6da2eccc0bf347f59e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc04702be4996e6b89b656f5a7fc8b8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189b2da6c420bf8f8900002d14f65f72.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a47ac48e9c15189074604656c7fe180.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86eff5761f61a20c240a428f2a7ceda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-01-03更新
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459次组卷
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6卷引用:江苏省苏州市第十中学2020-2021学年高二下学期5月月考数学试题