已知函数
的图象在
处的切线与直线
平行.
(1)求实数a的值;
(2)若关于
的方程
在
上有两个不相等的实数根,求实数
的取值范围.
(3)是否存在正整数
,使得满足
,
的无穷数列
是存在的,如果存在,求出所有的正整数
的值,如果不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280553eaae7740664a57f494fdddb3d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3aa3adcb154f6144903d456289ecb0f.png)
(1)求实数a的值;
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3029d9f285c6232a5024baa0e65b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7242b2ab643f9470da77e29d043b893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)是否存在正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd4bf4a32b7723cb0852da97702f4ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6e9af059607d8a1825c068c564c3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
更新时间:2023-06-02 17:47:31
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