名校
解题方法
1 . 已知
,则数列
的图象是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9d38a1171131b1a1f3f70ca2117be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.一条直线 | B.一条抛物线 |
C.一个圆 | D.一群孤立的点 |
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2021-09-15更新
|
455次组卷
|
4卷引用:贵州省贵州大学附属中学2020-2021学年高一下学期第一次月考数学试题
名校
解题方法
2 . 设函数
对任意的实数x,y,都有
,且
,记
,设
,设
,且
为等比数列.
(1)求
的值;
(2)设
,问:是否存在整数m,使得
对于任意的正整数n恒成立?若存在,求出m的最大值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c38a21483a2dc328d2e0b1d1b62599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f21febe8749e5e598124c2f6bb4025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95608cc0ca74587cf0f107ebd781fe8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9158db048850992ae4cace688253bf4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f69929551a9d2e63f558183a1f94da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/749188e78ae16d87e12345489e32d0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfea4a145a9ffc470033fda25e9902be.png)
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3 . (1)解不等式
;
(2)在等差数列中
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d60ac9962a016949b26287fbd6afdb.png)
(2)在等差数列中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fb3108a4c6ea35e580a67b256bb522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea0667a9200a67264191d9daf0488deb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/485bf06bec0397c11fca483cbf809902.png)
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