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解题方法
1 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e976891142f43f8b63cbadf4a040fe.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f7c37c57f6d8075fa6193a395ae4497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e976891142f43f8b63cbadf4a040fe.png)
您最近一年使用:0次
2020-02-08更新
|
479次组卷
|
3卷引用:人教A版(2019) 必修第一册 逆袭之路 第五章 5.5 三角恒等变换 5.5.2 简单的三角恒等变换
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2 . 在△ABC中,角A,B,C所对的边分别为a,b,c,且满足4bsinA
a,若a,b,c成等差数列,且公差大于0,则cosA﹣cosC的值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92a0e7176a768155ecd6ec4f4607ee62.png)
您最近一年使用:0次
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3 . 已知函数
,若对任意
均有
,则
的值等于_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5832df51f7e9f83bdd534788ec773bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc118b69912cd1cbd6e5d711703dd2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
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2020-02-03更新
|
194次组卷
|
2卷引用:2016届上海市延安中学高三下学期适应性考试(三模)(理)数学试题
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4 . 若点
是椭圆
上任意一点,点
分别为椭圆
的上下顶点,若直线
、
的倾斜角分别为
、
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c7e086c3ab30df4d79870ae9a3cce5.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbed61f2fa6116be9c19eaa2796663ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c7e086c3ab30df4d79870ae9a3cce5.png)
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5 . 已知
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d5279962e65cf11bde1cd1faa859522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46cbd8c9d6841ee3ded51e9c5e9b9018.png)
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6 . 化简
的结果为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f762828e6e91ec1db126a2638993f0a.png)
您最近一年使用:0次
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7 . 已知
,
,则
的值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b2bd65366218adaa8a83bd0b317d95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c94a0f8976c1cc8f00b4e37a8ed4db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6abc69c57972a4efb8301e3308ea9ca6.png)
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2020-01-14更新
|
698次组卷
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4卷引用:吉林省实验中学2019-2020学年高一上学期期末数学(理)试题
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8 . 已知
,则
的值为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e946030120ac1b3eb14718585bf755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850dba25bf0f5f13541bf9b6ec12b84d.png)
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2020-01-12更新
|
548次组卷
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8卷引用:江苏省连云港市2020-2021学年高三上学期1月适应性演练模拟考试数学试题
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9 . 直线
与半圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
交于A、B两点,设
的倾斜角是
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/005fa32731cd8290847a115f78b42efa.png)
_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f6e1f67dc15c3cf135a78af95c70fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6749cc877da0706a2e89401e652d6aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a5e484dfef494d27bc35ae7b8cf75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc14778010a33f90902ff17b1ec0ac73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/005fa32731cd8290847a115f78b42efa.png)
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2020-01-09更新
|
316次组卷
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2卷引用:2018年上海市南洋模范中学高考三模数学试题
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10 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128961fa4aee331959ccbcc53dcbf352.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/682c68bca75ba878bf2808d9a7ec4710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aea4240aee69426ede3d4992f6b7c5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128961fa4aee331959ccbcc53dcbf352.png)
您最近一年使用:0次
2019-11-16更新
|
387次组卷
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2卷引用:上海市交通大学附属中学2017-2018学年高一下学期开学考试数学试题