名校
1 . 已知
,
分别是椭圆
的左、右焦点,
为椭圆
上一点,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4534dccff2fb8298f6de1000c1742f9.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6afb11cd5c022d806c64f47794593bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df44ca8a2848775c266c9dce3f9b2ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4534dccff2fb8298f6de1000c1742f9.png)
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2018-11-30更新
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2291次组卷
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7卷引用:【全国百强校】重庆市第一中学2019届高三上学期期中考试数学(理)试题
11-12高二上·陕西渭南·期末
名校
2 . 在
中,角
,
,
所对的边分别为
,
,
,若
,
,
,则
=___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882589c896c6993d9687f0e14a283481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c2bb7be2e9410a16502268fd4c67be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14c6709d2a04863cacdee618b20613e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f015ed8e497b4394053ddd19683a98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b331bbdd68d110681fc4547748b93bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe4e63a482a0bb3be6d670ab6f2635db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554165bc8be9bf5d2b1d6092bbd159b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5036e26e77152eb05955d2aceca93950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad5ab8085ec8573a9a60f52ecfafc12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49109f8dd0b2e5f3a3139ba95014c9dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
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2018-08-12更新
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429次组卷
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11卷引用:重庆市綦江实验中学校2017-2018学年高一下学期半期考试数学(理)试题.
重庆市綦江实验中学校2017-2018学年高一下学期半期考试数学(理)试题.(已下线)2011-2012学年广东省执信中学高三上学期期中考试文科数学2014-2015学年山东省乐陵市一中高二上学期期中考试理科数学试卷北京西城31中2016-2017学年高一下期中数学试题云南省泸西县第一中学2017─2018学年下学期期中考试 高一数学试题(已下线)2010年陕西省临渭区高二上学期期末数学理卷(已下线)2011-2012学年山东省济宁市鱼台二中高二上学期期末考试理科数学(已下线)2013届福建省罗源县第一中学高三第一次月考文科数学试卷黑龙江省牡丹江市第一高级中学2017-2018学年高一4月月考数学试题上海市北虹、上理工附中、同二、光明、六十、卢高、东昌等七校2016-2017学年高三上学期12月月考数学试题上海市七校2017届高三上学期12月联考数学试题
3 . 设△ABC的内角A,B,C所对边的长分别是a,b,c,且b=3,c=1,A=2B.则a的值为_______
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2018-04-21更新
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395次组卷
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6卷引用:重庆市万州第三中学2018-2019学年高一下学期期中数学试题
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4 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6865b92c141d5e8feb3ab39bc54fe7.png)
的部分图像如图所示,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d113fb85dc21941d73105c8c4ec227d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6865b92c141d5e8feb3ab39bc54fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9883249d259b56391e4634c7aaa49da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d113fb85dc21941d73105c8c4ec227d.png)
![](https://img.xkw.com/dksih/QBM/2018/1/21/1865164739526656/1866121013370880/STEM/f05dda0a053c48c4ae958714d2171392.png?resizew=226)
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2018-01-22更新
|
265次组卷
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5卷引用:重庆市万州第二高级中学2018-2019学年高二下学期期中(文)数学试题
重庆市万州第二高级中学2018-2019学年高二下学期期中(文)数学试题河北省邯郸市2018届高三1月教学质量检测数学(文)试题河南省天一大联考2018届高三阶段性测试(三)(全国卷) 文数试题安徽省巢湖市柘皋中学2018届高三第六次月考数学(文)试题(已下线)专题2.18 函数的图象-重难点题型精练-2022年高考数学一轮复习举一反三系列(新高考地区专用)
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5 . 在
中,已知三个内角为
、
、
、满足
,求最小角的余弦值__________ .
![](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/e6b74fad52c8f5a7b0e0adc5a21d88dc.png)
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6 . 函数
(
),若
的任意一个对称中心的横坐标都不属于区间
,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf38918675d03649651f4f341a34a2c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d59a5b8c9c9fb85b9dcf717357eb76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9bbf6e7847f96706b54f079716bf23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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7 . 设函数
(
,
)的部分图象如图所示,其中
为等腰直角三角形,
,
,则
的解析式为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/624787f8308dedfc228927dd43abbc24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14effb5263b6b8ed7748f05586177a63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/774bab99af2e02c96be79c4a63a274bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/564b165f0bdc97d710109290d2276c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/2017/11/4/1810075111972864/1811467247378432/STEM/2394b1d8-0eda-46b7-872c-ae0effa8a6b3.png)
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8 . 在
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d1507961d903cc0d8314135d395bcb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
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9 . 已知
,且
,则![](https://img.xkw.com/dksih/QBM/2017/1/4/1619441857232896/1619441857593344/STEM/e36d83aa7dac431b805e969fd6c9f491.png?resizew=95)
_______
![](https://img.xkw.com/dksih/QBM/2017/1/4/1619441857232896/1619441857593344/STEM/95a96323ac09406d928a5f335ea38acc.png?resizew=72)
![](https://img.xkw.com/dksih/QBM/2017/1/4/1619441857232896/1619441857593344/STEM/52c78adf7de646c99b034e2de84724d2.png?resizew=75)
![](https://img.xkw.com/dksih/QBM/2017/1/4/1619441857232896/1619441857593344/STEM/e36d83aa7dac431b805e969fd6c9f491.png?resizew=95)
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解题方法
10 . 在
中,角
的对边分别为
,且满足条件
,则
的周长为__________
![](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/590a32dcca3adf57900e3f502359f1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2017-02-08更新
|
697次组卷
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2卷引用:2017届重庆市第一中学高三上学期期中数学(理)试卷