1 . 设函数
,若函数
有零点,且与函数
的零点完全相同.
(1)证明:
;
(2)求实数
的取值范围.
附:当
时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/641bf261adbbe4ed33009643412666c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9e09e7b66ba97a319abd0b50200ee.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede0efb6e07b969dea99bc464b91a41b.png)
(2)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
附:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccaa6e503b61e9ae78d8439cba2e328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2d3b81e294d777012c2fb9fb9f74fed.png)
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2022-02-14更新
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314次组卷
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2卷引用:山西省名校2021-2022学年高一上学期期末数学试题