名校
1 . 已知
的三个内角
所对的边分别为
,向量
,
,且
.
(1)求角
的大小;
(2)若向量
,
,试求
的取值范围.
![](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/3314516a92425f23c36d6643ce7c30dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e96deb80850d32fa58e1fa0b559e5c21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ee59964f020fc52b5ba66a3f5fcc3c.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02fe100e554d8a29f2b29d12214a6e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b504e2999281d0dfdc26b97c8a1e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80631c39f956c2b0d552cec939100d1.png)
您最近一年使用:0次
解题方法
2 . 在
中,
分别是角
所对的边,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72d786911edb531a8e5f63369b97368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7a71b30063e929dfcb71ae1693149e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dcfa3e340b3976832d450dd4ae7e7a7.png)
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72d786911edb531a8e5f63369b97368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7a71b30063e929dfcb71ae1693149e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dcfa3e340b3976832d450dd4ae7e7a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32f2d4d1d2c16c54b2caef17840bfcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b577140309da21dec9aac47b2c5ec1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知命题
:对任意
,
;命题
:存在实数
,使函数
(
)有零点,则下列命题为真命题的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19d8873fc50971cc2ed2c04ba0ddfd68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551b915f2da5f63ca894143cc78807f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b77c22612ce4f80e6e42e5f6858e1d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2017-11-09更新
|
285次组卷
|
4卷引用:吉林省舒兰一中2017-2018学年高二上学期期中考试数学(文)试卷
4 . 设函数
的定义域为
,若存在常数
,使
对一切实数
均成立,则称
为“条件约束函数”. 现给出下列函数:
①
;
②
;
③
;
④
是定义在实数集
上的奇函数,且对一切
均有
.
其中是“条件约束函数”的序号是__________ (写出符合条件的全部序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7957e57a899be729c908957ad5d302b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/201e5c20906b6ae120bc3909320036bf.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/330d61bc0eac3bb6e1a8aefb73ac171e.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c36b1de0e171a71081405c58c63eb72.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d3aaa22b625d3f6f4177355e4a7415a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f3ea0e56d5fd31250c28e220fa29f0.png)
其中是“条件约束函数”的序号是
您最近一年使用:0次
2017-10-19更新
|
548次组卷
|
6卷引用:吉林省吉林大学附属中学2017届高三第七次模拟考试数学(理)试题
吉林省吉林大学附属中学2017届高三第七次模拟考试数学(理)试题内蒙古赤峰二中2018届高三上学期第二次月考数学(理)试题2020届北京市十一学校高三(12月)月考数学试题2020届海南省海口市海南中学高三第七次月考(3.8)数学试题内蒙古鄂尔多斯市2018-2019学年高三上学期期中考试数学(理)试卷(已下线)专题06 拿高分题目强化卷(第三篇)-备战2021年新高考数学分层强化训练(北京专版)
解题方法
5 . 已知集合
,
.
(1)若
,求
;
(2)若
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0f3f9600656a48e83d441eba90d9e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a15ec7c4775929286a331be2a62e1a6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
6 . 已知
、
、
是球
的球面上三点,
,
,
,且棱锥
的体积为
,则球
的表面积为
![](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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1f4f255d191786f7d330d278868c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05740f0c6071846227dc0ec177ad15e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4278c0911e7df78965e78cff69cac5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ada8f10b58cd3b5a2c07b22463e692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-07-26更新
|
564次组卷
|
8卷引用:吉林省吉林大学附属中学2017届高三第六次摸底考试数学(理)试题
吉林省吉林大学附属中学2017届高三第六次摸底考试数学(理)试题(已下线)2018年高考二轮复习测试专项【新课标理科】热点七 几何体与球切、接的问题(已下线)2018年高考二轮复习测试专项【新课标文科】热点七 几何体与球切、接的问题(已下线)《2018届优生-百日闯关系列》数学专题一 第三关 以棱柱、棱锥与球的组合体为背景的选择题(已下线)2018年高考数学备考中等生百日捷进提升系列(捷进提升篇)专题08 立体几何四川省雅安市2018届高三下学期三诊数学(理)试题四川省宜宾市第四中学2019届高三12月月考数学(理)试题山西省怀仁市第一中学云东校区2020-2021学年高二上学期第三次月考数学(理)试题
名校
7 . 已知一个圆锥的顶点和底面的圆周都在同一个球面上,若球的半径为1,则当圆锥的体积最大时,圆锥的高为_______ .
您最近一年使用:0次
2017-07-26更新
|
191次组卷
|
2卷引用:吉林省吉林大学附属中学2017届高三第六次摸底考试数学(文)试题
名校
8 . 选修4-5:不等式选讲
已知函数
.
(Ⅰ)若
,求实数a的取值范围;
(Ⅱ)对任意
,
恒成立,求实数
的值.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eb1cb5ac94c99a1114fafaa114ea445.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2647b37d2ac14fb05851b48944f4261f.png)
(Ⅱ)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e762cdc5b0a9de24855edb6abb5a9e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db2f80e8b268cbcb617e2f023daa133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
9 . 选修4-4:坐标系与参数方程
以坐标原点
为极点
轴的正半轴为极轴建立极坐标系,已知曲线
的极坐标方程为
.
(Ⅰ)求曲线
的参数方程;
(Ⅱ)若曲线与
轴的正半轴及
轴的正半轴分别交于点
在曲线
上任取一点
且点
在第一象限,求四边形
面积的取值范围.
以坐标原点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18a6ffa901209e6a6900202ad06168c.png)
(Ⅰ)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)若曲线与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ad34268602be5f9759ac9660d1ce0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab32133aaba2e9fb61339dcdb36b223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4b37603d3b3530824c24907c708d8c.png)
您最近一年使用:0次
名校
10 . 在平面直角坐标系
中,抛物线
的顶点是原点,以
轴为对称轴,且经过点
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e20ff5d9ea33e5fa9b8c8014340c5c.png)
(Ⅰ)求抛物线的方程;
(Ⅱ)设点在抛物线
上,直线
分别与
轴交于点
,
.求直线
的斜率.
您最近一年使用:0次