21-22高一·湖南·课后作业
名校
1 . 某旅店有200张床位.若每张床位一晚上的租金为50元,则可全部租出;若将出租收费标准每晚提高
元(
为正整数),则租出的床位会相应减少
张.若要使该旅店某晚的收入超过12600元,则每张床位的出租价格可定在什么范围内?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b395a824c8962e50ea8dd950d83970f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b395a824c8962e50ea8dd950d83970f5.png)
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2022-03-07更新
|
1335次组卷
|
8卷引用:3.3 从函数观点看一元二次方程和一元二次不等式(1)
(已下线)3.3 从函数观点看一元二次方程和一元二次不等式(1)(已下线)专题2.3 二次函数与一元二次方程、不等式-举一反三系列湘教版(2019)必修第一册课本习题 习题2.3广西浦北中学2023-2024学年高一上学期10月月考数学试题(已下线)习题2.3二次函数与一元二次方程与、不等式(已下线)专题21 函数的应用(一)(1)广西浦北县浦北中学2022-2023学年高一上学期10月月考数学试题
21-22高一·湖南·课后作业
解题方法
2 . 证明不等式:
(1)若
,
,
,
都是正数,求证:
;
(2)若
,
,
是非负实数,则
;
(3)若
,
是非负实数,则
;
(4)若
,
,则
.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e7387a3fbab6508695365955f55258.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d92a6b95fdfdedb405447340293bdc.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727ff3ac24b506706045956c16336f94.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19339e3904e9541ff26b30ae5f1242b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4f58b9bc974b789928f6490acb43fb3.png)
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21-22高一·湖南·课后作业
3 . 证明不等式:
(1)若
,
,则
;
(2)若
,
,则
.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca24341509c05e672999202f2df0ebaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e271b6e63206285461a7552d11efd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f50ce6b511e6b928796e048fc7fa5c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d89ab55ffb93cc48f077b542dbd25aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/114c1084f693d236cb6852b7f2384eb8.png)
您最近一年使用:0次
2022-03-07更新
|
706次组卷
|
8卷引用:2.1 等式性质与不等式性质精讲-【题型分类归纳】
(已下线)2.1 等式性质与不等式性质精讲-【题型分类归纳】(已下线)2.1等式性质与不等式性质(第2课时)(导学案)-【上好课】(已下线)高一上学期期中复习【第二章 一元二次函数、方程和不等式】九大题型归纳(拔尖篇)-举一反三系列湘教版(2019)必修第一册课本习题第2章复习题(已下线)复习题二2(已下线)专题15 等式性质与不等式性质-2022年暑假初三升高一数学衔接知识自学讲义(人教A版2019)(已下线)突破2.1 等式的性质与不等式的性质(重难点突破)(已下线)第05讲 等式性质与不等式性质(7大考点)-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)
21-22高一·湖南·课后作业
4 . 探索函数
(常数
)的奇偶性、值域以及单调性,并说明理由;若函数为
(常数
)时,该函数的性质有何变化?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50fe40cce39a7dbd1c25762545311b18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c845cf8af8bfb0463e9797cc5628b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
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5 . 设等差数列
的前n项和为
,若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f343c2a70fb520e023c279d75031e2ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01d48afd27fae94afe519c349a320a01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd935362a93af9ad559591723be3c926.png)
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21-22高二·江苏·课后作业
6 . 已知等差数列
中,前m(m为奇数)项的和为77,其中偶数项之和为33,且
,求通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a364896045b67a5f0dcd98651a8e8bc7.png)
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7 . (1)利用等式
,求数列
的前n项和;
(2)仿(1)探求数列
的前n项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6842cff59e0bfa6f253a9b7c02320aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de85a69e4af66d860c569e3cd5c741df.png)
(2)仿(1)探求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41943438b569f22d7bf5c042c134f169.png)
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21-22高二·江苏·课后作业
8 . 已知四个数依次成等差数列,且四个数的平方和为94,首尾两数之积比中间两数之积少18,求此等差数列.
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21-22高二·江苏·课后作业
解题方法
9 . 在等差数列
中,
(1)已知
,
,求
;
(2)已知
,求
;
(3)已知
,
,求
;
(4)已知
,
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365e0eaa6da90cf15ce197c16e79a45e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38db0637b08ba3fb6a230f8e08ba438f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3cf6f2bbe20a404fea41a4d2b1c4c7.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd16a6780c7f74c4e703632ff95e175c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05201ef79a5d5904f492845396fb5470.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619ef41442789786a473b6ffa8e73f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(4)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5c1344592c925b273f2cb9b9e47ebbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83529e32fa71373e2c9d53402cc0c8e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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21-22高二·江苏·课后作业
10 . 若直角三角形的三条边的长组成公差为3的等差数列,则三边的长分别为( )
A.5,8,11 | B.9,12,15 |
C.10,13,16 | D.15,18,21 |
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