1 . 设
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55455d41da4d9d0fd66514bc2f8fc0b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b0ff5f03410079fcb86c9428b033369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9525470f1cf22ac14c7c8592f1da0433.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2 . 在四边形
中,
,
.
(1)若
,
,求
的面积;
(2)若
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f06172cbbdf90ec428634ddf75994d8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd108abaf2b7fc1d0239b28afcf4ae6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9adbb8e1528ebeb4e5daa5082e449636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721c75fcd58d3d54260aad0f82e09e37.png)
您最近一年使用:0次
名校
3 .
=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e763039f5c976f471038a5a5a56810.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-09-08更新
|
832次组卷
|
8卷引用:贵州省遵义市第四中学2021-2022学年高一下学期第一次质量监测数学试题
解题方法
4 . 已知
的内角A,
,
的对边分别是
,
,
,点
是
边上的中点,
,且
的面积为
.
(1)求A的大小及
的值;
(2)若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31266f139f5bbfd50e53038070c41445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(1)求A的大小及
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b89e7ff008dea7530bdc4ea5b6419d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b97bb18e5ca34d22b5e827316a122a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
2022-07-04更新
|
243次组卷
|
3卷引用:贵州省黔东南六校联盟2022-2023学年高二上学期期中联考数学试题(A)
名校
5 . 在
中,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
6 . 已知
,
.
(1)求
的值:
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa7d6aca3d470e5310aebc83345ee09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c8eb633c7f9c87c55c1bec7d25e159.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84a25527e54ee2614e3b5e99ef8a3d4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f69ed37311c101fb76b9cbd1738700.png)
您最近一年使用:0次
2022-11-03更新
|
232次组卷
|
2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
名校
7 . 将函数
的图象上各点横坐标缩短到原来的
(纵坐标不变)得到函数
的图象,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0875b33d02484fd70bf37a2cc8c52906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
A.函数![]() ![]() | B.函数![]() ![]() |
C.函数![]() ![]() | D.函数![]() ![]() |
您最近一年使用:0次
2020-12-04更新
|
574次组卷
|
2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(理)试题
8 . 设a,b,c分别为
的三个内角A,B,C所对的边,向量
,且
.
(1)求B;
(2)若
,求b.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71be3973ead08608ecc100c022abecf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc9c22e445fd2e7d7e33f87116dbd1a.png)
(1)求B;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4f68e1d570cef43494fb350f482dbb.png)
您最近一年使用:0次
2022-11-24更新
|
218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
名校
解题方法
9 . 已知
,
,角β的终边过点
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/078714125ff27a773ded66638044f7b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f331c3d96c5812a620e326373747eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c4bb1347753e07dfc3a4a1e5b5cf04.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f7db0f9eead2cffac84b6037f57a86.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a71788c5babc2be5da0b5a2bd000601.png)
您最近一年使用:0次
2022-06-06更新
|
209次组卷
|
4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
解题方法
10 . 已知函数
的部分图象如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/c2ff9cd5-4110-41fa-b1e1-d4a303148b57.png?resizew=147)
(1)求
的值;
(2)试问正弦曲线
经过怎样的变换可以得到曲线
?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8adf27d156e326935856d1de846f3688.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/c2ff9cd5-4110-41fa-b1e1-d4a303148b57.png?resizew=147)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac50bd35417c26de59299b6809869d1.png)
(2)试问正弦曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df49341b57eb107f416a014903ce25a8.png)
您最近一年使用:0次
2022-11-24更新
|
178次组卷
|
3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