名校
解题方法
1 . 已知点A的坐标为
,将OA绕坐标原点O逆时针旋转
至
,则点
的坐标为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d03268e486f9fb09a44eca7d8ff7a9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48fce10478485ef01d2318fc3465bb4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
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2021-09-13更新
|
650次组卷
|
5卷引用:贵州省贵阳市乌当区2023届高三上学期期中质量监测数学(文)试题
名校
2 . 将函数
的图象向左平移
个单位长度后得到曲线C,若C关于原点O对称,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b88b809e9f5e8518864683f122bd535.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-11-10更新
|
405次组卷
|
3卷引用:贵州省贵阳市乌当区2023届高三上学期期中质量监测数学(文)试题
名校
解题方法
3 .
的角
,
,
的对边分别为
,
,
,且
的面积为
.
(1)求角
的大小;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d1a9df897f1d5458c96872d354a332d.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25edcc950d3354ff7df6c74dd4d3f3b1.png)
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4 . 下列化简正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-06-06更新
|
393次组卷
|
2卷引用:贵州省黔东南州2021-2022学年高一下学期期中考试数学试题
名校
解题方法
5 . 若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46450ede442fc45996bd0f05b20ce54a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea16125a2b2462fc9a5d8e943c32cda.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-11-24更新
|
383次组卷
|
4卷引用:贵州省毕节市金沙县2023届高三上学期期中教学质量检测数学(文)试题
贵州省毕节市金沙县2023届高三上学期期中教学质量检测数学(文)试题贵州省毕节市金沙县2023届高三上学期期中教学质量检测数学(理)试题(已下线)第14讲 三角恒等变换、三角函数的应用(7大考点)-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)四川省广安市第二中学校2022-2023学年高一下学期第一次月考数学试题
6 . 若函数
在区间
内不存在最小值,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69dc53cd7d3d3edad18ff6b696cef407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97979b3724cbcb0f505561b25ab302d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 为了得到函数
的图象,只要把函数
图象上所有的点( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e8d86966246544bbad67e3ad277da7.png)
A.向右平移![]() | B.向左平移![]() |
C.向右平移![]() | D.向左平移![]() |
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2022-11-03更新
|
381次组卷
|
3卷引用:贵州省遵义市2023届高三上学期第一次统一考试数学(文)试题
解题方法
8 . (1)已知
,
都是锐角,
,
,求
的值;
(2)已知
为锐角,
为钝角,
,
,求
.
![](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/25f8783429be686df75afcd56e847dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c52354132c36663d2b1e4761bdabb62a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9a269a6b70ee3176b62ad070b1221f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b4089d966700545804c6b580fe032d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8077b218b5d170c7ce4de12bbfc7e7.png)
您最近一年使用:0次
2022-02-14更新
|
403次组卷
|
2卷引用:贵州省黔东南州2021-2022学年高一下学期期中考试数学试题
名校
解题方法
9 . 在△ABC中,
,AC边的中线长
,则△ABC周长的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6bdfb0e1be5583e794ab614a8abe1b.png)
A.![]() | B.6 | C.![]() | D.9 |
您最近一年使用:0次
解题方法
10 . 在
中,角
,
,
的对边分别为a,b,c,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/c9f70421-5b54-4af8-b347-1a6ded659fb3.png?resizew=142)
(1)求角B的大小;
(2)如图,若D为
外一点,且
,
,
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/24b7c4a731fb545f50f5699d3a7bc4d7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/c9f70421-5b54-4af8-b347-1a6ded659fb3.png?resizew=142)
(1)求角B的大小;
(2)如图,若D为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01d94894e8349638637c9451f200720f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次