名校
解题方法
1 . 已知函数
的图象关于直线
对称.其最小正周期与函数
相同.
(1)求
的对称中心,
(2)若函数
在
上恰有8个零点,求
的最小值;
(3)设函数
,证明:
有且只有一个零点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8afb9095c987bf16ce83bd1d4e77427c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24db7b603aebdee8e298d1fe49c848e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fcac0f78f7633458b355150c8d477f2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a39725e447560a9dd575264182bd6ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec509982a9ba36e2d8a2c3e5419acc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0d6508c370089860a78c8079405681.png)
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