1 . 在①
,②
,
且
,③
,这三个条件中任选一个补充在下面的问题中,并给出解答.
在
中,角
,
,
所对应的边分别为
,
,
,且.
(1)求角
;
(2)若
,求
周长的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1211282a5706757899f3bca486affaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b2de9b6acdb2f62eebd89340b1b675d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029e8fdb523f786eaffa0440d2d264c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4d070c5939bb0ec4a9d40d7e3c7d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c787be7204401f5693e4c995f51bd9f.png)
在
![](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)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3320a13248a3a1208ff6ee85c9d26f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2 . 设全集
,集合
,
或
.
(1)求集合
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8332c03aa634d1d27b774d811507dc55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7833a41dd7cbdeff195f411a3442cdd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a61d7b55e578c412ec49c2db80917af6.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc5fac2251889f3f793537e01c824d3.png)
您最近一年使用:0次
名校
解题方法
3 . 函数
.
(1)若
,求方程
的根;
(2)若对任意
恒成立,求
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dccd8ec3c6edbceabc233658fb72004b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1304040c6fae489175b37c4ba7984b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2022-01-04更新
|
540次组卷
|
13卷引用:浙江省嘉兴市当湖高级中学2021-2022学年高一上学期12月阶段性测试数学试题
浙江省嘉兴市当湖高级中学2021-2022学年高一上学期12月阶段性测试数学试题甘肃省张掖市第二中学2020-2021学年高一下学期期中考试数学试题2011年辽宁省瓦房店市五校高二上学期竞赛数学文卷(已下线)2010-2011学年北京师大附中高二下学期期中考试文科数学(已下线)2011-2012年新人教版高一上学期数学(已下线)2011-2012年广东省普宁第二中学高一上学期11月月考数学【全国百强校】云南省昆明第一中学2018-2019学年高一下学期期中考试数学试题安徽省安庆市潜山第二中学2019-2020学年高一上学期期中数学试题甘肃省天水市第一中学2018-2019学年高二下学期第三次学业水平模拟考试数学试题江苏省扬州市仪征市第二中学2020-2021学年高三上学期9月测试数学试题青海省西宁北外附属新华联外国语高级中学2022-2023学年高三上学期开学考试数学试题新疆阿克苏市实验中学2021-2022学年高一上学期期末考试数学试题内蒙古通辽市科尔沁左翼中旗实验高级中学2024届高三上学期第一次月考数学(文)试题
4 . 设集合
,
,全集为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求
;
(2)若
,求
;
(3)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e043973d607ddd6c0dbb4dc76e8db320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8314ee6804c6cc14250a90dbf52d3807.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae3516cead1976248defbf1ffe368170.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
您最近一年使用:0次
名校
5 . 已知
,直线
与曲线
和直线
分别交于
,
两点,若对任意
,
恒成立,则实数
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/340a9ca51c8dac94263a72a2bd0ae292.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec205dd821e251510f265bd53cf62526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e2b6466242aec6c1ff38f83eb66314.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/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb439e535b3baed73438f3a1c41fabb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
解题方法
6 . 已知全集
,集合
,集合
.
(1)求
,
;
(2)若集合
,满足
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39d930eda48696e3577f9f4e38bb07e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffecee5dcea243c684d5b59df6347d17.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae3516cead1976248defbf1ffe368170.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9fb5408ee1c7e1213654d046a13cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1044cd14484db33772a038bdd4fe3373.png)
您最近一年使用:0次
名校
7 . “数列
为常数列”是“数列
为等比数列”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2021-09-19更新
|
895次组卷
|
4卷引用:浙江省嘉兴市2021-2022学年高三上学期9月基础测试数学试题
浙江省嘉兴市2021-2022学年高三上学期9月基础测试数学试题(已下线)浙江省温州市乐清市知临中学2021-2022学年高三上学期教学基础测试数学试题(已下线)专题21 等比数列-2023届高考数学一轮复习精讲精练(新高考专用)陕西省榆林市第十中学2021-2022学年高二下学期期末文科数学试题
名校
解题方法
8 . 设集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21eeba7e14736e513098b911d2827453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae3d7153f8aa35441ab419c34f6be5c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2021-09-19更新
|
860次组卷
|
8卷引用:浙江省嘉兴市2021-2022学年高三上学期9月基础测试数学试题
名校
解题方法
9 . 已知
,
是以
为圆心,
为半径的圆周上的任意两点,且满足
,设平面向量
与
的夹角为
(
),则平面向量
在
方向上的投影的取值范围是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede359ccb522009b4fae3df0623054f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098a3e7d1f1890863b7483a98b618119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49edf1756e0f0e468210f7ab0fad4bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/588414d07bcedbf1e7d46d0d028e269d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5773af927ab0caa208eef1adf9e87aee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4568f87bbf306a87fcbb054ec4fc3ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/588414d07bcedbf1e7d46d0d028e269d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab7b0fa63c2cb0f75e1567039892d9a0.png)
您最近一年使用:0次
名校
解题方法
10 . 函数
的图象可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/922a6269af55a89ebfe8a9cae896421b.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2021-09-16更新
|
620次组卷
|
3卷引用:浙江省嘉兴市2021-2022学年高三上学期9月基础测试数学试题
浙江省嘉兴市2021-2022学年高三上学期9月基础测试数学试题(已下线)浙江省温州市乐清市知临中学2021-2022学年高三上学期教学基础测试数学试题陕西省榆林市第十中学2021-2022学年高二下学期期末文科数学试题