21-22高一·湖南·课后作业
1 . 利用不等式的性质证明下列不等式:
(1)若
,
,则
;
(2)若
,
,则
.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f75807858b7804a1ad2039c41f323a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5197a4059d79e7ad2954b387d17d1ac8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ab74d7f34dda733dca9aa3dac2a282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557f1c548c99f9b3a96ad97155617148.png)
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8卷引用:3.1 不等式的基本性质 (1)
(已下线)3.1 不等式的基本性质 (1)(已下线)习题2.1(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(课时训练)(已下线)2.1 等式性质与不等式性质精练-【题型分类归纳】(已下线)专题2.1 等式性质与不等式性质-举一反三系列(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)湘教版(2019)必修第一册课本习题 习题2.1
21-22高一·湖南·课后作业
2 . 用适当的符号填空:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f5e5688b5c7e514ee72597690a7676.png)
______
; (2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aba5ece90aec30ff1313c630ccd0296.png)
______
;
(3)R______
; (4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/939f7dc30e48606f0aafd5ab6d9a93b5.png)
______
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f5e5688b5c7e514ee72597690a7676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a3619ccbcf65312754a970647014e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aba5ece90aec30ff1313c630ccd0296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86a10eaa25bea651fea8bb8427c4a12.png)
(3)R
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83c699e84427dbcf5a98c2a4d65c587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/939f7dc30e48606f0aafd5ab6d9a93b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e3e643d58f9c8dd27a772ab7396a7b3.png)
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(已下线)1.2 子集、全集、补集(已下线)习题1.11.2 集合间的基本关系练习(已下线)第01讲 集合的概念及基本关系(3大考点10种解题方法)-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)湘教版(2019)必修第一册课本习题 习题1.1
21-22高一·湖南·课后作业
3 . 回答下列问题:
(1)若
,且
,能否判断
与
的大小?举例说明.
(2)若
,且
,能否判断
与
的大小?举例说明.
(3)若
,且
,能否判断
与
的大小?举例说明.
(4)若
,
,且
,
,能否判断
与
的大小?举例说明.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44cbc322861846709c08c7f1da746848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea712984ea5017140e20bee226fd5af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5b1fe01c3300d5b11313aa6f2eefc7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf7adcc976209d4b686156120bea276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d02a08024fd5d4305bc2638b472fa48.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44cbc322861846709c08c7f1da746848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f384e98d574fa2676d61624285f88188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0aa3929a1e72941a617ec65e2abc66.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf7adcc976209d4b686156120bea276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fef20073a12bab727faa217718b63414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812be9806122241c476ba1db516c4823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11f787941cb1abfe9bb757276b765c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/169aa35f106034e7d63cb1505042b4cf.png)
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(已下线)3.1 不等式的基本性质(已下线)2.1.1 等式与不等式章节综合测试-一元二次函数、方程和不等式湘教版(2019)必修第一册课本习题2.1.1等式与不等式(已下线)第二章 一元二次函数、方程和不等式-【优化数学】单元测试基础卷(人教A版2019)(已下线)专题02 一元二次函数、方程和不等式1-2024年高一数学寒假作业单元合订本
21-22高一·湖南·课后作业
4 . 如图,矩形ABCD的相邻两条边AB,BC的长度分别为1和3,点E,F是BC的三等分点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67207077ac81e66c05f8e210bcb84862.png)
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21-22高一·湖南·课后作业
解题方法
5 . 如图,一质量为m的均匀细木棒的一端斜放在一方形木块上,另一端固定在地面上,木棒与水平地面的夹角
.当木块以恒定的速度向左方移动时,细木棒受到的支持力F如何变化?何时支持力最大?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7b9d9bf0d5fc25c99170ab27fa4045.png)
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20-21高二·全国·课后作业
6 . 1.判断下列命题的真假:
(1)如果函数
的定义域为
,且
在
上递增,在
上递减,则函数
的最大值为
.
(2)如果函数
的定义域为
,且
在
上递减,在
上递增,则函数
无最小值.
(1)如果函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99bc960e7542d1f1ada519b085a8d603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d021029d216a1b24f712931ed1537d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4889b4b46d3cd6dd677d200bdf4914fe.png)
(2)如果函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a873ff69b69b5ddc3f07c705f4c597.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d1288c575c8cdce97930bc32c423b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132180f062a45a511b1fe0cef8288db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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20-21高一·江苏·课后作业
7 . 设a为给定实数,函数
的定义域为A.
(1)若对于任意
,都有
,问:此函数的图象一定具有怎样的对称性?说明理由.
(2)若对于任意
,都有
,问:此函数的图象一定具有怎样的对称性?说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8a976daf9b21b1d6fb58182ae34277.png)
(2)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a0ad869e385be373c7037214397b9e.png)
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20-21高一·江苏·课后作业
解题方法
8 . 画出下列函数的图象,指出函数的单调区间,并求出函数的最大值或最小值:
(1)
;
(2)
,
;
(3)
;
(4)
;
(5)
;
(6)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff47174a90111c017a0007025eb8813.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995820303ee0ac7d09ab0576be5e4b6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a18c676c5ef0a2291e17011c9af2848.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09c203257e702a3386e2efcd2e1ff0d.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d67a80f80741cff7336e081a0afa26b2.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183fa2872c8fda5edd6163524b27e73e.png)
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20-21高一·江苏·课后作业
9 . 已知k,b是常数,填写下表:
函数 | ![]() | ![]() | ||
![]() | ![]() | ![]() | ![]() | |
单调区间 | ||||
单调性 |
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20-21高一·江苏·课后作业
10 . 已知某皮鞋厂一天的生产成本
(单位:元)与生产数量
(单位:双)之间的函数关系式是
.
(1)求一天生产
双皮鞋的成本;
(2)如果某天的生产成本是
元,那么这一天生产了多少双皮鞋?
(3)若每双皮鞋的售价为
元,且生产的皮鞋全部售出,试写出这一天的利润
关于这一天生产数量
的函数关系式,并求出每天至少生产多少双皮鞋,才能不亏本.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae222d8aafbc64867f026396d0ccc36.png)
(1)求一天生产
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dadc63e6e33743ce590ed968948a5a58.png)
(2)如果某天的生产成本是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b0a16c0df4f19ca668d03ad72c97d9.png)
(3)若每双皮鞋的售价为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a17161b28b6ad8f57abc5b11e1b6c671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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