名校
1 . 如图,在
中,
,
,
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e4f0c1c9cca0555906d8a53e1a6803d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93a5c5354a353046e062fd14c722e6c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f48cb56285aa78588baa224f732ff64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b12cd088a6f16ee92bb314494426f11c.png)
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572472770240512/1572472776196096/STEM/551eda7b09114b29a1498afb116d461c.png?resizew=132)
您最近一年使用:0次
2016-12-04更新
|
1918次组卷
|
9卷引用:安徽省淮北市树人高级中学2020-2021学年高一下学期期中数学试题
2 . 已知函数
(
)的部分图像如图所示.
![](https://img.xkw.com/dksih/QBM/2015/8/6/1572199839825920/1572199845863424/STEM/754899bab0bf42f19b97fe621594314c.png)
(1)求函数
的解析式;
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b2de0054b074d481769cbc17dc9ce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af8826553bb19a556a7c63ea909c65b7.png)
![](https://img.xkw.com/dksih/QBM/2015/8/6/1572199839825920/1572199845863424/STEM/754899bab0bf42f19b97fe621594314c.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a332de299a26b2b27c5ddd87deec92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c5f5addd6076a76179a9cfffa68450b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/578853e3cd49b1a7c80ab6d1e507ba22.png)
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3 . .已知函数f(x)=
cos xsin x-
cos 2x
(1)求
的最小正周期;
(2)求
在
上的最大值、最小值及此时相应自变量x的取值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2015/8/6/1572199839825920/1572199845830656/STEM/fd0c16c5490542549311ec31af378909.png)
(2)求
![](https://img.xkw.com/dksih/QBM/2015/8/6/1572199839825920/1572199845830656/STEM/fd0c16c5490542549311ec31af378909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd780a31d5cec6f5f1e8375821f8783.png)
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4 . 已知
都是第一象限的角,求
![](https://img.xkw.com/dksih/QBM/2015/8/6/1572199839825920/1572199845806080/STEM/76a14251cebd429395f11d335f518cea.png)
![](https://img.xkw.com/dksih/QBM/2015/8/6/1572199839825920/1572199845806080/STEM/942633f6298d4e08b0e63ab9333bf29f.png)
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解题方法
5 . 已知向量
,
,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870feb7c251e2552471f1d53e6662d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef84d275246c94cd7d9c983231210fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc23a04cdac6439ea170e799f1c1df5.png)
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6 . (1)化简![](https://img.xkw.com/dksih/QBM/2015/8/6/1572199839825920/1572199845756928/STEM/e3bc227f2d864c2ab8b5d943d416de26.png)
(2)已知
=2,求
的值.
![](https://img.xkw.com/dksih/QBM/2015/8/6/1572199839825920/1572199845756928/STEM/e3bc227f2d864c2ab8b5d943d416de26.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3614c3d5dec59fcf704ba8f4f3f62be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d707790e2a763431e2c0167a77362e.png)
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7 . 下面有5个命题:
①函数
的最小正周期是
;
②终边在
轴上的角的集合是
;
③在同一坐标系中,函数
的图象和函数
的图象有三个公共点;
④函数
在其定义域上是单调递增函数;
⑤函数
是偶函数;
则正确命题的序号是________________
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8e4f5b3c0bc0c9a968e9eec375b66a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
②终边在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e7e8682ba79b15306f55c628e41ed3.png)
③在同一坐标系中,函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffa8ddcbbe89ab0f250f56673e2d36c.png)
⑤函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d80d70fdab1a1d7c98ae24821c3abe6.png)
则正确命题的序号是
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8 . 如图所示,若P为△ABC的外心,且
+
=
,则∠ACB=__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d956b09c004ddf8bdf6669a8182e80ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8e287cd7e75c3199af6f935492c947a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49163e9dc6878910a10d2b4aa1ddad93.png)
![](https://img.xkw.com/dksih/QBM/2015/8/6/1572199839825920/1572199845699584/STEM/b6e03207df6441b0a767fa9ba4b8c254.png?resizew=105)
您最近一年使用:0次
2016-12-03更新
|
1064次组卷
|
5卷引用:2014-2015学年安徽省淮北师大附中高一下学期期中考试数学试卷
2014-2015学年安徽省淮北师大附中高一下学期期中考试数学试卷人教A版(2019) 必修第二册 逆袭之路 第六章 6.2.2 向量的减法运算(已下线)第六章 6.2.1 向量的加法运算(备作业)-【上好课】2020-2021学年高一数学同步备课系列(人教A版2019必修第二册)人教A版(2019) 必修第二册 实战演练 第六章 课时练习02向量的加法运算(已下线)专题05 向量的综合运算问题 -【重难点突破】2021-2022学年高一数学常考题专练(人教A版2019必修第二册)
9 . 如图,四边形ABCD是边长为3的正方形,把各边三等分后,共有16个交点,从中选取两个交点组成向量,则与
共线且长度为2
的向量个数是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64d59ac6538a0f4d79fb825e082081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://img.xkw.com/dksih/QBM/2015/8/6/1572199839825920/1572199845658624/STEM/4070bac97e284887afcc9ef8a1be7a32.png?resizew=110)
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10 . 如果
,那么
= _______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4fc05871e68b25b5b3e6ce7edc0fbef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b3f3663a2f0d6180ec3d3251b411f2.png)
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