1 . 已知
中,
为
的中点,
,
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3274aac77f61dc25ab33cf0351b3810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc327192b90460f8845ef81229422784.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cf3d14eb32760482c383221784ee3f3.png)
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2 . 如图,
与
轴的正半轴交点为
,点
,
在
上,且
,点
在第一象限,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c672951dfbcca87d700526a76b28d132.png)
![](https://img.xkw.com/dksih/QBM/2017/4/11/1663607072931840/1663699608674304/STEM/2a1c4ae7b7ed465291eef79b14783506.png?resizew=163)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd4a75a3c11d2d13e80c44cc7030a768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51909b9559e2d7b2eea130a8dee4714a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c672951dfbcca87d700526a76b28d132.png)
![](https://img.xkw.com/dksih/QBM/2017/4/11/1663607072931840/1663699608674304/STEM/2a1c4ae7b7ed465291eef79b14783506.png?resizew=163)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-04-11更新
|
959次组卷
|
5卷引用:安徽省宣城市郎溪县2020届高三下学期仿真模拟考试(最后一卷)文科数学试题
3 . 已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a1f4f127cb5623531905f50d56c46b6.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dcd6977f759cf3f94b848b169b80684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a1f4f127cb5623531905f50d56c46b6.png)
您最近一年使用:0次
名校
4 . 如图,在平面直角坐标系
中,以
为角的顶点,
轴正半轴为始边的角
,
的终边分别与单位圆交于点
,
,若点
的横坐标是
,点
的纵坐标是
.
![](https://img.xkw.com/dksih/QBM/2017/2/16/1625387432689664/1626147209289728/STEM/5b98eb6016294d328fe908a193ba263d.png?resizew=154)
(1)求
的值;
(2)求
与
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2beb91f10d2d8f2aa0dcc3f5cd1598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba564f8149fb98ee50c4012f06708382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9c6fe12d3a9727e00ef87a630302ab.png)
![](https://img.xkw.com/dksih/QBM/2017/2/16/1625387432689664/1626147209289728/STEM/5b98eb6016294d328fe908a193ba263d.png?resizew=154)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f65e4a08ff43908b2e8b6726ffd7ca8.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eeb629a6f94d187154b9e0fba4eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987a2625dae99578e5c0e7b57d4a1c2f.png)
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5 . 设角
的终边与单位圆相交于点
,则
的值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8256567ac75f1cb6b3742f914247518.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db589bebb2f413b51ab7d684f7eb990.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-02-17更新
|
1136次组卷
|
3卷引用:2016-2017学年安徽省池州市高一上学期期末考试数学试卷1
2016-2017学年安徽省池州市高一上学期期末考试数学试卷1(已下线)2016-2017学年安徽省池州市高一上学期期末考试数学试卷安徽省六安市新安中学2020-2021学年高三上学期第三次月考数学试题
6 . 点
位于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca710d44c5578c98b480e83ba8bab51.png)
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
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7 . 下列不等式中,正确的是
A.tan![]() | B.sin![]() |
C.sin(π-1)<sin1o | D.cos![]() |
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8 . 化简
的值是(
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99bb1c44c8e8ca8ac5f6ffaf95e22192.png)
![](https://img.xkw.com/dksih/QBM/2017/2/13/1625073980866560/1625073980981248/STEM/82443a28dbce4c8f922e162a465620db.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 若集合
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3f9cdb8869c20cf38edca1a433270d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2017-02-16更新
|
246次组卷
|
2卷引用:2017届安徽百校论坛高三文上学期联考二数学试卷
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10 . 直三棱柱
中,底面是正三角形,三棱柱的高为
,若
是
的中心,且三棱柱的体积为
,则
与平面
所成的角大小是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31da7291140e430a11e2a10cc6cdefbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-02-08更新
|
259次组卷
|
4卷引用:安徽省淮南二中2018-2019学年高二(上)10月月考数学模拟(文科)试题