名校
1 . 设
是定义在
上且满足下列条件的函数
构成的集合:
①方程
有实数解;
②函数
的导数
满足
.
(1)试判断函数
是否集合
的元素,并说明理由;
(2)若集合
中的元素
具有下面的性质:对于任意的区间
,都存在
,使得等式
成立,证明:方程
有唯一实数解.
(3)设
是方程
的实数解,求证:对于函数
任意的
,当
,
时,有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
①方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ce1d0d23531eba7c795b2f53a5b280.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15bccf9756ec716bd5c04e2641b6441.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e167f3c0bf314895359bef9abaebfab.png)
(1)试判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587805667a307f54b0191af0baddb52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320cba4d29e050a7e9f4e3b24bdbbc86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54c5dec973abaaa6b491e87613385ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ba9f7143244232db734a3516a166e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ce1d0d23531eba7c795b2f53a5b280.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ce1d0d23531eba7c795b2f53a5b280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207e829d4261524fda688e45d115d82d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1c461a4c973e8441db181e1aeb0015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3849738f1dbb3d725a226ed565f272da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba883c6bf46e584a998d22169763b984.png)
您最近一年使用:0次
2020-11-17更新
|
620次组卷
|
5卷引用:上海市延安中学2024届高三上学期开学考数学试题
上海市延安中学2024届高三上学期开学考数学试题上海市延安中学2024届高三上学期9月月考数学试题江苏省南京市溧水二高、秦淮中学、天印中学2020-2021学年高三上学期期中联考数学试题(已下线)江苏省南京市三校2020-2021学年高三上学期期中联考数学试题(已下线)专题10 利用微分中值法证明不等式【练】
名校
解题方法
2 . 已知数列
满足:
,
,其中
,
.
(1)若
、
、
成等差数列,求
的值;
(2)若
,求数列
的通项
;
(3)若对任意正整数
,都有
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a3def0fd2ff496d99c13c6f933d404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(3)若对任意正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a76ca08fb2d8577f0b0e5b16e5c98693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2019-11-11更新
|
463次组卷
|
2卷引用:上海市敬业中学2022届高三下学期开学考试数学试题
3 . 已知数列
满足
.
(1)求数列
的通项公式;
(2)对任意给定的
,是否存在
(
)使
成等差数列?若存
在,用
分别表示
和
(只要写出一组);若不存在,请说明理由;
(3)证明:存在无穷多个三边成等比数列且互不相似的三角形,其边长为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb712dca9d8f147872e6754bafb6c0a.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)对任意给定的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad52924df9291d5d191d18e09374ee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bf1c130cb225fc18415ebb502e1b488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a703c4b29e8c39df29e2c518efae236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b37e71b5a4cc8b8ea89e47dd12b4783.png)
在,用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
(3)证明:存在无穷多个三边成等比数列且互不相似的三角形,其边长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5500ffabc0887e1bc7f4ef6ec56b5e5c.png)
您最近一年使用:0次