解题方法
1 . 已知数列
的前
项和为
,
,
.
(1)求数列
的通项公式;
(2)设
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d87d5e75e6f18859afea5591c8a5ad.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216876de04325fd250c38c485cbc34b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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2 . 设
是等差数列,
,
,
,则使
成立的最大自然数
是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65de2781c62bb9a9cf8e7e43f3d87fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1344061104c69d9deb0dd089ebcc26a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49763402b2f2023f0ba64c37924267d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.4013 | B.4014 | C.4015 | D.4016 |
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3 . 已知二次函数
对一切实数x∈R,都有
成立,且
,
,
(b,c∈R).
(1)求
的解析式;
(2)记函数
在[
1,1]上的最大值为M,最小值为m,若
≤4,求b的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e04b4cd16224102ef696222caa56ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61c9a7ed0961f8977a21dab37aab396.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a470b4e6d108cf17b9130c35230d581.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f511880834175ac4546ea7cc7758b1b0.png)
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6卷引用:重庆市巫山中学2020-2021学年高一上学期第二次月考数学试题
重庆市巫山中学2020-2021学年高一上学期第二次月考数学试题重庆市万州新田中学2020-2021学年高一上学期第二次月考数学试题江苏省扬州市仪征市精诚高级中学2021-2022学年高三上学期9月月考数学试题(已下线)专题3.9 函数性质及其应用大题专项训练(30道)-2021-2022学年高一数学举一反三系列(人教A版2019必修第一册)山东省临沂第二中学2022-2023学年高一上学期第二次线上考试数学试题江西省上饶市广丰区2021-2022学年高一上学期期末模拟考数学试题(二)
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4 . 对于定义域为D的函数
,如果存在区间![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
,同时满足:①
在
内是单调函数;②当定义域是
时,
的值域也是
;则称
是该函数的“美好区间”.
(1)判断函数
是否存在“美好区间”, 若存在,则求出
的值,若不存在,请说明理由;
(2)已知函数
有“美好区间”
,当
变化时,求出
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86e22051b36801cfb069457ff55493c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa2481391477c550d92c9bb1a8ce1ac1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf90c2ce90923af2d44191525f4a669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c8c4c2c1841dc214d272006a57d1d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
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解题方法
5 . 已知定义在
上的函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111f2f98aeda48d93116541bac954f2e.png)
(1)试判断当
时函数
的单调性,并用定义证明;
(2)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111f2f98aeda48d93116541bac954f2e.png)
(1)试判断当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab87accf1942ab80def96d12ef173163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c637be6d14dc874ccefadd9573d62d25.png)
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解题方法
6 . 已知集合
,
.
(1)若
,求实数
的值;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75956b10a4e202bb0b49715455ec18dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec80c1814126dc3ed07b39b7e10ae48.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a05f0d48fdc041c1ee75301507c2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
7 . 设函数
,函数
,若对于的
,总
,使得
恒成立,则实数的
的取值范围是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50496afaeeff63a7a18c8992247aec93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a203a74d5a74a3ba8bac4c48cd0a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1aa26d5f8e235d8c31679902f8c95f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7409b8e4b38636929d90f0ac54b2ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d095844022a8ed5fefc23b24878d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2卷引用:重庆市巫山中学2020-2021学年高一上学期第二次月考数学试题
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解题方法
8 . 已知定义在
上函数
的图象是连续不断的,且满足以下条件:①
,
;②
,当
时,都有
;③
.则下列选项成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c4ae554ba3cae1a74ff4a55f1289de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6bc9a5068aea5464bf7ad68512d83dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f83a9e64a1c5134d059afad7391125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f5782301b3cee20df4ba1a99d78e50.png)
A.![]() | B.若![]() ![]() |
C.若![]() ![]() | D.![]() ![]() ![]() |
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5卷引用:重庆市巫山中学2020-2021学年高一上学期第二次月考数学试题
9 . 高斯函数是数学中的一个重要函数,在自然科学、社会科学以及工程学等领域都能看到它的身影,设
,用符号
表示不超过
的最大整数,如
,
,称函数
叫高斯函数,下列关于高斯函数
的说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa0401b9187f94db7cacbea005d065b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df88f17552c22a132b99d768789fb6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c959bdbadfeb88bc9c35e41fb0f5b600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c959bdbadfeb88bc9c35e41fb0f5b600.png)
A.![]() | B.若![]() ![]() |
C.函数![]() ![]() | D.函数![]() ![]() |
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3卷引用:重庆市巫山中学2020-2021学年高一上学期第二次月考数学试题
重庆市巫山中学2020-2021学年高一上学期第二次月考数学试题重庆市万州新田中学2020-2021学年高一上学期第二次月考数学试题(已下线)【新东方】高中数学20210429—007【2020】【高一上】
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解题方法
10 . 下列说法不正确的是( )
A.不等式![]() ![]() |
B.已知![]() ![]() ![]() ![]() |
C.“![]() ![]() |
D.当![]() ![]() ![]() ![]() |
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4卷引用:重庆市巫山中学2020-2021学年高一上学期第二次月考数学试题
重庆市巫山中学2020-2021学年高一上学期第二次月考数学试题重庆市万州新田中学2020-2021学年高一上学期第二次月考数学试题(已下线)练习01+集合与常用逻辑用语-2020-2021学年【补习教材·寒假作业】高一数学(苏教版)江苏省镇江市扬中市第二高级中学2020-2021学年高一上学期期末检测2数学试题