已知函数
.
(1)求函数
在
上的零点个数;
(2)当
时,求证:
.
(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c208391dc7d39ae0a086a971e9925962.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01dc2d99655cf7598837cb0886166ed.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e0f3bac0cff515db488b841232b1f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7424e7cfb13657bd23546157163f0e.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980c8904e5634cf0fb3edbcbee15b5a2.png)
22-23高二上·江苏苏州·期末 查看更多[4]
江苏省苏州市常熟中学2022-2023学年高二上学期一月学业质量校内调研数学试题(已下线)第五章 一元函数的导数及其应用 讲核心 03(已下线)第五章 一元导数及其应用章末重点题型归纳(3)(已下线)第九章 导数与三角函数的联袂 专题四 利用导数证明含三角函数的不等式 微点1 利用导数证明含三角函数的不等式(一)
更新时间:2023-01-16 16:48:35
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解答题-证明题
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解题方法
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(1)当函数
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(2)当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcefa1eadaa807e3fe6c61a2f8d2dea9.png)
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(2) 若
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