1 . 在
中,角
所对的边分别是
,在下面三个条件中任选一个作为条件,解答下列问题,三个条件为:
①
;②
;③
.
(1)求角
的大小;
(2)若
,求
的值.
![](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)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211a30d81bab3a8557f43abc23cbb35c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77c249b23e67899be4cd788104bf97d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d157bf34638123b52dddb6acca3fcce4.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47b381cc6b9f806cc9a6806597efcb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69225cfdfbc0a9a1ccfdd15c46353b8f.png)
您最近一年使用:0次
2024-05-02更新
|
968次组卷
|
2卷引用:湖南省株洲市第一中学2021-2022学年高二下学期期中考试数学试题
名校
2 . 已知命题
:
;命题
:
对一切实数
恒成立.若
且
为真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f754145f648450f9e14cec4b17140a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
3 . 已知
.
(1)求向量
的坐标;
(2)设向量
的夹角为
,求
的值;
(3)若向量
与
互相垂直,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa69f397d3daafecc3a602561017ad4d.png)
(1)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a06c8eae3652486cf9e416ce3a8ffc9.png)
(2)设向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
(3)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff01c3e3b53271c5d16ad4e02a930ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
4 . 在
中,角
所对的边分别为
,已知
.
(1)若
,求角
的大小;
(2)若
,求
边上的高.
![](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/4849807ab80cfd4c70b8c2a8291a27bb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/251c0cef7d83d4cc38157f44f1c1588c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23725094c363fd158166a8698971694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
2024-05-08更新
|
1198次组卷
|
6卷引用:北京市顺义区杨镇第一中学2021-2022学年高一下学期期中考试数学试卷
北京市顺义区杨镇第一中学2021-2022学年高一下学期期中考试数学试卷江苏省无锡市辅仁高级中学2023-2024学年高一下学期5月月考数学试卷(已下线)高一期末模拟数学试卷01 -期末考点大串讲(苏教版(2019))四川省遂宁市射洪中学校2024届高三高考考前热身数学(文)试题四川省射洪中学校2024届高三高考考前热身理科数学试题(已下线)专题05 解三角形大题常考题型归类-期期末考点大串讲(人教B版2019必修第四册)
5 . 化简求值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f74bc106be1201070a022612a7a47da.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b038ddc8c7f9fc3cb19529e7410ecd.png)
您最近一年使用:0次
2022高一上·全国·专题练习
6 . 设
,写出集合
的子集,并指出其中哪些是它的真子集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b31ed7916f97b2376db817caf205d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
7 . 已知方程
的两根为
,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ed38a31a738a14d695981245182ba8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b53fa7cb0199548be5b043a0da0607.png)
您最近一年使用:0次
8 . 对
因式分解
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408f5fdc9cd1e29606f97a56f1d9b4f0.png)
您最近一年使用:0次
9 . 解不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83830df482c538581aef0c823271a03a.png)
您最近一年使用:0次
10 . 对
因式分解
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba4558bd6683385bfddf377b086a5484.png)
您最近一年使用:0次