名校
解题方法
1 . 已知函数
,则关于
的方程
的实根个数构成的集合为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5eeef4d8eb2da1ccc48d5ef9d026de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b670e3986cd86a6363100498d67c5430.png)
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2020-02-18更新
|
1557次组卷
|
4卷引用:上海市上海中学2020-2021学年高一上学期期末数学试题
上海市上海中学2020-2021学年高一上学期期末数学试题江西省九江市九江一中2019-2020学年高一上学期期末数学试题沪教版(2020) 一轮复习 堂堂清 第二单元 2.10 指数方程与对数方程(已下线)专题1 分段函数问题(过关集训)(高三压轴题全攻略)
2 . 已知动点P(x,y)满足|x﹣1|+|y﹣a|=1,O为坐标原点,若
的最大值的取值范围为
,则实数a的取值范围是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65382c5cd3a7c45e32af789bdbbd20f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94576cdfaf706cf90a29c9c48a0281c.png)
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名校
3 . 某旅游胜地欲开发一座景观山,从山的侧面进行勘测,迎面山坡线
由同一平面的两段抛物线组成,其中
所在的抛物线以
为顶点、开口向下,
所在的抛物线以
为顶点、开口向上,以过山脚(点
)的水平线为
轴,过山顶(点
)的铅垂线为
轴建立平面直角坐标系如图(单位:百米).已知
所在抛物线的解析式
,
所在抛物线的解析式为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d34124673550544b94ab30db941fe5e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/50dee7e8-2716-4505-a41a-9beaf80d889e.png?resizew=321)
(1)求
值,并写出山坡线
的函数解析式;
(2)在山坡上的700米高度(点
)处恰好有一小块平地,可以用来建造索道站,索道的起点选择在山脚水平线上的点
处,
(米),假设索道
可近似地看成一段以
为顶点、开口向上的抛物线
当索道在
上方时,索道的悬空高度有最大值,试求索道的最大悬空高度;
(3)为了便于旅游观景,拟从山顶开始、沿迎面山坡往山下铺设观景台阶,台阶每级的高度为20厘米,长度因坡度的大小而定,但不得少于20厘米,每级台阶的两端点在坡面上(见图).试求出前三级台阶的长度(精确到厘米),并判断这种台阶能否一直铺到山脚,简述理由?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948cacc3005f0fa08835e05952168032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d34124673550544b94ab30db941fe5e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/50dee7e8-2716-4505-a41a-9beaf80d889e.png?resizew=321)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0877194ab8760f54c35527177b03ff93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)在山坡上的700米高度(点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7133508b9f5ccaccab5b30ba3f06d057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/695dd000adca953bb884d657c51032af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(3)为了便于旅游观景,拟从山顶开始、沿迎面山坡往山下铺设观景台阶,台阶每级的高度为20厘米,长度因坡度的大小而定,但不得少于20厘米,每级台阶的两端点在坡面上(见图).试求出前三级台阶的长度(精确到厘米),并判断这种台阶能否一直铺到山脚,简述理由?
您最近一年使用:0次
2019-10-23更新
|
804次组卷
|
3卷引用:上海市南模中学2019-2020学年高三上学期10月月考数学试题
名校
4 . 若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0937f5a8ad2afa56381cc9d584f6d3.png)
(1)当
时,设
所对应的自变量取值区间的长度为
(闭区间
的长度为
),试求
的最大值;
(2)是否存在这样的
使得当
时,
?若存在,求出
的取值范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0937f5a8ad2afa56381cc9d584f6d3.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77bd2b5113133614c6ee86d670953565.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e669d502287cab6a74d72fb4aa1ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65185cb5d67a482a7c86afc70fdbd230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)是否存在这样的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ede5cb0407ac7f334a726eeac5d89c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a916b565f017ddad96d04077568bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e669d502287cab6a74d72fb4aa1ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
5 . 若定义在
的函数
满足:对于给定的
,存在
,使得
成立,则称
具有性质
.
(1)函数
,
是否具有性质
,请说明理由;
(2)已知函数
具有性质
,求T的最大值;
(3)已知函数
的定义域为
,满足
,且
的图像是一条连续不断的曲线,问:是否存在正整数n,使得函数
具有性质
?若存在,求出这样的n的取值集合;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b006ca4156920323d4a6e5b824eb4cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb03852bfba151574918a5ccdfa2eaeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c03be80f9a2db9ab33ff5505f9c22f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6be9a1c3d2ecfaf4aadfcd92c5f9204.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0facd8ef8a4f03cb439af27a89d25a35.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84c5adeb3bce246ebbe10df3ee61d9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/716121901a339a5cfabd31a13562339e.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d7ce04b79ef6ae16d9d38288af2108.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0facd8ef8a4f03cb439af27a89d25a35.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b006ca4156920323d4a6e5b824eb4cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/499bc3e09a7b069e8eb33f4cc203c030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500965e9c4bf763d6f51c7abd2de309e.png)
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