名校
1 . 已知集合
是满足下列性质的函数
的全体:存在实数
,对于定义域内的任意
,均有
成立,称数对
为函数
的“伴随数对”.
(1)判断函数
是否属于集合
,并说明理由;
(2)试证明:假设
为定义在
上的函数,且
,若其“伴随数对”
满足
,求证:
恒成立;
(3)若函数
,求满足条件的函数
的所有“伴随数对”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7a1aed6c7bf5ad8dc6a9c4071e14e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99ac5983ac1b8ead75c11f8022018ccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e58703cf57935d56d4b26cf7102811.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b1c079afd1b058adc67a50f48f3d466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)试证明:假设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e74920f57028200604c2691c8f0fb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e58703cf57935d56d4b26cf7102811.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c9ebe3b38d02c837131394d2c32e15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86eff5761f61a20c240a428f2a7ceda.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1155e2804263dca432e07cbfea0ffd0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
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2 . 已知函数
.
(1)证明:
;
(2)设
,
在
上的极值点从小到大排列为
,求证:
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b516b223c11709487a6bd89658d70f9b.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e15c2171c1be9ec394494ad822a048d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0006aba7435a296cd3a9572f9fa16146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff2aa68223dfc02f39d7d10fa005387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f225a783d5a2c6aa4278a2f7e398083.png)
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3 . 已知余切函数
.
(1)请写出余切函数的奇偶性,最小正周期,单调区间;(不必证明)
(2)求证:余切函数
在区间
上单调递减.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97e2f342c101f0b787703e1ea38ee4d5.png)
(1)请写出余切函数的奇偶性,最小正周期,单调区间;(不必证明)
(2)求证:余切函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97e2f342c101f0b787703e1ea38ee4d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ff8dca35b759d3051b62badd7d76bc.png)
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2019-12-11更新
|
249次组卷
|
5卷引用:上海市静安区2017-2018学年高一下学期期末数学试题
上海市静安区2017-2018学年高一下学期期末数学试题(已下线)第7章 三角函数【过关测试】-2020-2021学年新教材高一数学下册单元复习一遍过(沪教版2020必修第二册)沪教版(2020) 必修第二册 同步跟踪练习 第7章 三角函数 7.4.2 正切函数的性质(已下线)上海期末真题精选50题(大题提升版)-2020-2021学年高一数学下册期中期末考试高分直通车(沪教版2020必修第二册)沪教版(2020) 必修第二册 同步跟踪练习 第7章 7.4 正切函数的图像与性质 2 正切函数的性质
名校
4 . 给出集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d0c0d57080c83dfae371038b34fbc57.png)
(1)若
求证:函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6d4f7bcbafb423271f97e0d407c74ec.png)
(2)由(1)可知,
是周期函数且是奇函数,于是张三同学得出两个命题:
命题甲:集合M中的元素都是周期函数;命题乙:集合M中的元素都是奇函数,请对此给出判断,如果正确,请证明;如果不正确,请举出反例;
(3)设
为常数,且
求
的充要条件并给出证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d0c0d57080c83dfae371038b34fbc57.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca64afa00211df204a6302463890edbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6d4f7bcbafb423271f97e0d407c74ec.png)
(2)由(1)可知,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d95da33526f7713ce2016bfa6efe0f.png)
命题甲:集合M中的元素都是周期函数;命题乙:集合M中的元素都是奇函数,请对此给出判断,如果正确,请证明;如果不正确,请举出反例;
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c99ac91fc1e9097126e4c2aa20cdeffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cc1d1fd01b97f1f5414428bc0d711d0.png)
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5 . (1)请直接运用任意角的三角比定义证明:
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75cd397c31481b526bba6136f925b29d.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5417c231457711c7436efc826c66b45a.png)
您最近一年使用:0次
名校
6 . 已知定义在
上的函数
满足:
对任意的实数
都成立,当且仅当
时取等号,则称函数
是
上的
函数,已知
函数
具有性质:
(
,
)对任意的实数
(
)都成立,当且仅当
时取等号.
(1)试判断函数
(
且
)是否是
上的
函数,说明理由;
(2)求证:
是
上的
函数,并求
的最大值(其中
、
、
是△
三个内角);
(3)若
定义域为
,
①
是奇函数,证明:
不是
上的
函数;
②
最小正周期为
,证明:
不是
上的
函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/100641c7f6a72609364d063824dec0b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc1bc250c8a6523a1be394ff48d4a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f333263260646c494225db8a7476c00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97340ae857eb77d1872df24f6817d91d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec968babaf30dbe82eee618685f92e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00725492cf521a4277f03c364998a4cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73223617c8855826298d435673787a94.png)
(1)试判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a04546d92fd165fc1ad2cc82c2dbb25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b923078510697d5f7f9ea392eb76dd9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbfe8e7fb253685e0e50bae0c5482314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a8080fef9bdfa92ae70f3e314eef3e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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7 . 用分析法证明:若
的三内角
成等差数列,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/043714f337a44c343813c4e34f699211.png)
您最近一年使用:0次
名校
8 . 已知连续不断函数
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb0b2e34e1e4581465b63b9398659a6.png)
(1)证明:函数
在区间
上有且只有一个零点;
(2)现已知函数
在
上单调递增,且都只有一个零点(不必证明),记三个函数
的零点分别为
.
求证:(i)
;
(ii)判断
与
的大小,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c23a4318dbb9b8cd8ea042503f661f78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a684d833df633394761bc2222d28da7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d49ec515fb1fdc93ca4dda443326ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb0b2e34e1e4581465b63b9398659a6.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f00f2f6ab162f9333ec55db195d663b.png)
(2)现已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c7921ee6a8981f1f4980cdcb0f921bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f00f2f6ab162f9333ec55db195d663b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4978f812146b4566467ee255fc1c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
求证:(i)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f3f7bbc8d8d40096103d870563419fd.png)
(ii)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
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2018-06-20更新
|
289次组卷
|
2卷引用:【全国百强校】福建省仙游第一中学2017-2018学年高一下学期第二次月考数学试题
9 . 给出集合
.
(1)若
,求证:函数
;
(2)由(1)分析可知,
是周期函数且是奇函数,于是张三同学得出两个命
题:命题甲:集合
中的元素都是周期函数.命题乙:集合
中的元素都是奇函数. 请对此
给出判断,如果正确,请证明;如果不正确,请举反例;
(3)若
,数列
满足:
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
,数列
的前
项
和为
,试问是否存在实数
、
,使得任意的
,都有
成立,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/2797a0dde20f22497c6190d08c71b741.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c6d8eccab2b897f45885ed81195248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5314a9d2205a2beba0dcffb8fd943b18.png)
(2)由(1)分析可知,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c6d8eccab2b897f45885ed81195248.png)
题:命题甲:集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
给出判断,如果正确,请证明;如果不正确,请举反例;
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e96f3ea0467dc6393d7c4b602175a394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5fb8208a95205a6437385ba884547a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2693734765399876e9e93cdb110231c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
和为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab958eede2dbad749ba70bb230c88fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5014429b696a37a9461b66f22b1800.png)
存在,求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
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10 . 已知集合
,
.
(1)求证:
;
(2)
是周期函数,据此猜想
中的元素一定是周期函数,判断该猜想是否正确,并证明你的结论;
(3)
是奇函数,据此猜想
中的元素一定是奇函数,判断该猜想是否正确,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad367236dc1eeb4bd39d3851bfc2b747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d775348e727ba843a3fafb117ea3b4.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbec485ab7b15f1e09f163fe990577c5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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