1 . 在
中,角
,
,
的对边分别为
,
,
,已知
.
(1)若
,
,求
;
(2)若角
,求角
.
![](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/4331ff8daf64199ae37fee10a549ec24.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68abf671ba1bc7cbf2704f1dfde481d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff56c753e26ceda3ad3a79eb778d6dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e930d844b960c77a678fa64f11964eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2023-08-13更新
|
325次组卷
|
3卷引用:湖北省恩施州巴东县第三高级中学2022-2023学年高二下学期6月第四次月考数学试题
解题方法
2 . 如图,正三棱锥
中,底面边长是3,棱锥的侧面积等于底面积的2倍,M是BC的中点.求:
(1)
的值;
(2)二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/14/c1912a26-d730-4653-83d7-834b17c48e69.png?resizew=172)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e6383d9f658a784d322445554f3bc1.png)
(2)二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a5d8831a9bef0f3d882d97d28e6d0e.png)
您最近一年使用:0次
解题方法
3 . 已知函数
.
(1)求
;
(2)将函数
的图象向左平移
个单位长度后,得到
的图象,求
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4ac1de61cd0f6dc2b35f8737a0cb44.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b87f4ef298bdeebf59a0d850aff72c.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef023abc92ef73106fe81762d8ae87d.png)
您最近一年使用:0次
名校
4 . 已知向量
与
互相垂直,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5caabda288fc01cc168938846eec5d2.png)
(1)求
和
的值;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1549c8ab4fddf570c3214c74efd23e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cae8737a108dfc30252c3721f7cf9af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5caabda288fc01cc168938846eec5d2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7d5ef3a3d9a03be91135fc426d57cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45f3ef0dec884811218b7cd5a65f659.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af87a22a39bd12c4734b0bdf1596b42a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
您最近一年使用:0次
名校
5 . 记
的内角
的对边分别为
,已知
.
(1)若
,求
;
(2)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67db99aeec5df334a8c62771907cdc6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3711c8ba16405959bcb0b70385da1d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413323ab92f73c1eabb235731bb5c399.png)
您最近一年使用:0次
2023-07-27更新
|
480次组卷
|
2卷引用:四川省泸县第四中学2023-2024学年高二上学期开学数学试题
名校
解题方法
6 . 已知
,
.
(1)求
,
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b7913fc416becdf5fbf7fb8884fa8ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d394016b9fecac73f38cbc4ff18dee2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
您最近一年使用:0次
2023-07-27更新
|
913次组卷
|
3卷引用:2022年6月天津市普通高中学业水平合格性考试数学试题
名校
解题方法
7 . 欧拉是十八世纪数学界最杰出的人物之一,数学史上称十八世纪为“欧拉时代”.1735年,他提出公式:复数:
(
是虚数单位).已知复数
,
,
.
(1)当
时,求
的值;
(2)当
时,若
且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01e32cabd584c118930928ec3aed230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292da9eace23442c41d9240730f2629b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b0639c92f156a46d731a937251f12b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a7977d7239c13e044382d3bdc9ab015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3890808d042fedb8199ff23f4a8e6ddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f12a1b977d45ffc7a4753eb1e2301d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2023-07-14更新
|
350次组卷
|
5卷引用:四川省泸县第四中学2023-2024学年高二上学期开学数学试题
四川省泸县第四中学2023-2024学年高二上学期开学数学试题河北省武邑中学2022-2023学年高一下学期期末数学试题(已下线)12.4 复数的三角形式-【帮课堂】(苏教版2019必修第二册)(已下线)高一下学期期末数学试卷(提高篇)-举一反三系列(人教A版2019必修第二册)(已下线)重组1 高一期末真题重组卷(河北卷)B提升卷
名校
解题方法
8 . 在
中,角A,B,C所对的边分别为a,b,c,且满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899141fc4667ed27d570607d6838d89a.png)
(1)求A;
(2)若
,求a的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899141fc4667ed27d570607d6838d89a.png)
(1)求A;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac87123f12743c766e7ea585b045d08.png)
您最近一年使用:0次
2023-07-13更新
|
755次组卷
|
14卷引用:安徽省阜阳市第三中学2023-2024学年高二上学期一调考试(10月月考)数学试题
安徽省阜阳市第三中学2023-2024学年高二上学期一调考试(10月月考)数学试题广东省深圳市深圳外国语学校2023-2024学年高二上学期10月月考数学试题湖南省多校联考2023-2024学年高二上学期12月月考数学试题黑龙江省齐齐哈尔市克东县第一中学等学校2023-2024学年高二下学期4月月考数学试题云南省曲靖市宣威市第九中学2023-2024学年高二下学期第二次月考数学试卷河南省周口市2022-2023学年高一下学期期末数学试题陕西省咸阳市永寿县中学2023-2024学年高三上学期第二次考试文科数学试题陕西省咸阳市永寿县中学2023-2024学年高三上学期第二次考试理科数学试题甘肃省酒泉市2023-2024学年高三上学期10月联考数学试题山西省朔州市怀仁市第一中学校2024届高三上学期第三次月考(11月)数学试题广东省湛江市第一中学2024届高三第二次大考数学试题(已下线)专题02 平面向量的应用-《期末真题分类汇编》(人教A版2019必修第二册)河北省衡水市深州中学2024届高三上学期期末考试数学试题青海省海东市第一中学2023-2024学年高一下学期第一次月考数学试题
解题方法
9 . 已知角
.
(1)将
改写成
的形式,并指出α是第几象限角;
(2)在区间
上找出与
终边相同的角;
(3)在区间
上找出与
终边相同的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae5fc7d51b952ace141ed03d7f5fa7d5.png)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398209d71cb769fc40f5c49ff1cb45f5.png)
(2)在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33955402ea912fe70c76cc82ddb98ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(3)在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6fa45b11d28438bd490e168badf8106.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
10 . 中国剪纸是一种民间艺术.具有广泛的群众基础,交融于各族人民的社会生活,现有一张矩形卡片
,对角线长为
(
为常数),从
中裁出一个内接正方形纸片
,使得点
,
分别
,
上,设
,矩形纸片
的面积为
,正方形纸片
的面积为
.
时,求正方形纸片
的边长(结果用
表示);
(2)当
变化时,求
的最大值及对应的
值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3786b447cea4f66a1dfe9d00300f98a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3416881a6f67d05fe6b67787047fc86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad5a9147b25285124851a61c7d1a24a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2023-07-10更新
|
244次组卷
|
3卷引用:重庆市2023-2024学年高二上学期入学考试模拟数学试题