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解题方法
1 . 已知
,
,
,
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f102439ebd1efd422f04209ecec2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14f65044c12d07e5f37b5e0e68d9f5af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b7c767467b763994dd5116257ba243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d8e0548d98e1c2fa1fe1908538d77cb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0954753348942bd638e42003a2fcd2d0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
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2020-11-20更新
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676次组卷
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3卷引用:江苏省丹阳高级中学2017届高三上学期复习专练:函数、三角函数数学试题
名校
2 . 已知函数
.
(1)求函数
的定义域和值域;
(2)设
(a为实数),求
在
时的最大值
;
(3)对(2)中
,若
对
所有的实数a及
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1653dbf391bf5cb46e64535738eea7a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c85ceef9c1d78cce15b325b3d19a508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
(3)对(2)中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35477204f75390d119f98e16a4ab258f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8326eccb6fccce4cad9ff889bf0febbe.png)
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2020-10-28更新
|
1267次组卷
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10卷引用:江苏省丹阳高级中学2017届高三上学期复习专练:函数、三角函数数学试题
江苏省丹阳高级中学2017届高三上学期复习专练:函数、三角函数数学试题(已下线)专题17+函数的基本性质(3)-2020-2021学年新教材高一数学秋季辅导讲义(沪教2020)(已下线)第01讲 函数的概念和图象(教师版)-【帮课堂】2021-2022学年高一数学同步精品讲义(苏教版2019必修第一册)(已下线)第12讲 函数(5大考点)-2022-2023学年高一数学考试满分全攻略(沪教版2020必修一)(已下线)专题06 函数的概念及其表示压轴题-【常考压轴题】江苏省如东高级中学2017-2018学年高一上学期阶段测试(二)数学试题上海市徐汇区2018—2019学年高一上学期期末学习能力诊断数学试题人教A版(2019) 必修第一册 突围者 第三章 3.2课时2 最大(小)值(已下线)专题18函数的定义域和值域- 2020年初升高数学无忧衔接(沪教版)湖南省邵阳市邵东县创新实验学校2020-2021学年高三上学期第一次月考数学试题
3 . 在△ABC中,三个内角A,B,C的对边分别为a,b,c,已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd2237e706cae9e252c64cab5c28ace.png)
(1)求C;
(2)如图,设半径为R的圆O过A,B,C三点,点P位于劣弧
上,PAB=,求四边形APCB面积S关于的解析式及最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd2237e706cae9e252c64cab5c28ace.png)
(1)求C;
(2)如图,设半径为R的圆O过A,B,C三点,点P位于劣弧
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://img.xkw.com/dksih/QBM/2017/3/31/1655865751035904/1719486009548800/STEM/e28be28d00ac471fad95dbee341ca05c.png?resizew=169)
您最近一年使用:0次
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4 . 过点
作曲线
的切线
.
(1)求切线
的方程;
(2)若直线
与曲线
交于不同的两点
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe413b12ffabfb252121aa2eaa31017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6838d84b68c6f0d3b93b196d9b08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求切线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c503594ba2f31c048e019e810e941e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff82ebdfad5e7de1c7487b0b817a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e311ee0b5085e7e5a45c606daa5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6aa33040475ae9271d8c909d32e045d.png)
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2017-06-29更新
|
1107次组卷
|
2卷引用:江苏省丹阳高级中学2017届高三上学期复习专练:函数、三角函数数学试题
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5 . 如图是某设计师设计的
型饰品的平面图,其中支架
,
,
两两成
,
,
,且
.现设计师在支架
上装点普通珠宝,普通珠宝的价值为
,且
与
长成正比,比例系数为
(
为正常数);在
区域(阴影区域)内镶嵌名贵珠宝,名贵珠宝的价值为
,且
与
的面积成正比,比例系数为
.设
,
.
![](https://img.xkw.com/dksih/QBM/2016/7/5/1572890305806336/1572890311720960/STEM/b9f0198f3bf7407eab6d53f5e112c39a.png)
(1)求
关于
的函数解析式,并写出
的取值范围;
(2)求
的最大值及相应的
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c67f27df0a1d06ba9c2f50478a6740b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69fc86ad68b8f2877570ee85daa40ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e39748ea77d8f5b48fbfbe16a717de41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b076f71e247ba3ab512b8b2d67a47ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a21e7c3cd84ab1feddfbe9e6f5c11ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a419a1822ea167c15ef2aeeb59bd0bc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2378a9db0b150f0a9a410f01a27175f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f6dcd4c517bfc2ca8f2f97946bd2b2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e39748ea77d8f5b48fbfbe16a717de41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9c827e46d1a395fafbf15cdd6c6c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9c827e46d1a395fafbf15cdd6c6c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e39748ea77d8f5b48fbfbe16a717de41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c03c37814c97ee09cf6d828396b364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f92c0005348ac35069a9fd56068da81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f92c0005348ac35069a9fd56068da81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c03c37814c97ee09cf6d828396b364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5b40364fd5b0f0c555082aeb7c2ca38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc0933312779c310189facf99b147a59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa9aec90a2ab8df6ac1406780012ed3.png)
![](https://img.xkw.com/dksih/QBM/2016/7/5/1572890305806336/1572890311720960/STEM/b9f0198f3bf7407eab6d53f5e112c39a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce40d798dafc26c90d944965ef87485c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2016-12-04更新
|
502次组卷
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3卷引用:江苏省丹阳高级中学2017届高三上学期复习专练:函数、三角函数数学试题
名校
6 . 对于定义域为
的函数
,若同时满足下列条件:
①
在
内单调递增或单调递减;
②存在区间
,使
在
上的值域为
;那么把
(
)叫闭函数.
(1)求闭函数
符合条件②的区间
;
(2)判断函数
是否为闭函数?并说明理由;
(3)判断函数
是否为闭函数?若是闭函数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
②存在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2a2d903ba240a8b9a5ffc89d253c6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0643e1f4f23900039b5fc27610d61144.png)
(1)求闭函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e9e5a9218dd77e0b5f3013020930da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714333fe408ed8b29dbf88811ad55d19.png)
(3)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70b3424843cb338fed2e0445971b0df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2016-12-04更新
|
574次组卷
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5卷引用:江苏省丹阳高级中学2017届高三上学期复习专练:函数、三角函数数学试题