1 . (1)在
中,已知
,求
的值.
(2)求函数
的单调递减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffded1539ab8ac76e9593b99300fa34a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3aa0f242163272a997d361297d6b4b.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb71be062115f588badb8cfc6e84e774.png)
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2 . 在①
;②
;③
,三个条件中任选一个补充在下面问题中,并加以解答.已知
的内角A.B.C的对边分别为a,b,c若__________,且
的外接圆的半径为
,面积
.
(1)求内角A的大小;
(2)求
的周长.(注:如果选择多个条件分别解答,按第一个解答计分).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12c35b881ba7db85650a3e6923480d4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa1915e4694d8427c774c6f1393de6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf155b833ef124089f9668dfd62ec3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d1eac105dd2a8f46addffecb0d8a1c.png)
(1)求内角A的大小;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
3 . 已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8988b25b7572de3be07f9ef227ee641a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab74d98b6b3187193f7d146fdbd254fb.png)
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2021-04-02更新
|
83次组卷
|
2卷引用:江苏省盐城市伍佑中学2020-2021学年高一下学期第一次阶段考试数学试题
名校
解题方法
4 . 已知函数f(x)=-cos2xcos
+sin2xsin
.
(1)求函数f(x)的最小正周期;
(2)求函数f(x)的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54fc6601f0dd2d9719047af13bf48dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b2dfd7c4a190b8dbbc56f2fcc2b2ce0.png)
(1)求函数f(x)的最小正周期;
(2)求函数f(x)的单调递增区间.
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5 . 已知向量
,
,设函数
.
(1)求
的解析式
(2)求
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56fec5c527164122c631aa309f6c7f39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4b23f27974adeeb75811c17d2ba139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc1525aee9019a25cf71dc6054ec1ce.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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2012·福建宁德·二模
6 . 已知函数
,且
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b41abf2781095344c33ecb4af0827f.png)
(1)求实数a, b的值;
(2)求函数
的最大值及取得最大值时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f12dd06e1f285c558e949b6512d88cbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b178d7a6c9e31c319407708df1cbce42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b41abf2781095344c33ecb4af0827f.png)
(1)求实数a, b的值;
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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名校
7 . 已知A、B、C三点的坐标分别是
,
,
,其中
.
(1)
,求角
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2b1f4120365cb6ee4925fe417563f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76fc88ea5357b675c01e93c62fea338d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a56f2bf1802c8a1374f54de1f32fc453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad143f5eb71e5f70e25b7c9c746fd0da.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a5817c2fa33bf729befb51e3fadf971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06f162deb832a326b4a613051004a674.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efa687774d447387a4324dae9b96b07.png)
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8 . 在
中,已知角
的对边分别为
,且
成等差数列.
(1)若
,求
的值;
(2)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/24e0c10fb103930eabd5fa18e8f9bb06.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd582ac8d73f15316170a0581e90aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd924c2a35fdc08f726369138f2ed26d.png)
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10-11高三上·黑龙江双鸭山·阶段练习
名校
9 . 已知
是三角形
三内角,向量
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691bc5c79f1ccc6c7ac32dbfb84488b8.png)
(1)求角
; (2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40650f020bb5eb64cca428f59499d5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691bc5c79f1ccc6c7ac32dbfb84488b8.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665ed42af06724791c281e269e1e8a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03005d17bf564371ad29fea41f5c650.png)
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2016-11-30更新
|
1152次组卷
|
4卷引用:2011届黑龙江省双鸭山一中高三上学期第一次月考文科数学卷
(已下线)2011届黑龙江省双鸭山一中高三上学期第一次月考文科数学卷(已下线)2013届江西省南昌十九中高三第二次(10月)月考理科数学试卷四川省遂宁市第二中学校2017-2018学年高一下学期期中考试数学(理)试题湖北省咸宁市通城二中2020-2021学年高二上学期期末数学试题
解题方法
10 . 在平面直角坐标系
中,角
的终边与单位圆交于点
.
(1)若角
的终边落在第二象限,且点
的横坐标为
,求
的值;
(2)将角
的终边绕点
逆时针旋转
得到角
,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f8657de54481172ca9179c88c0c4c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9ac8fa189e108fc6d284774b8925e3.png)
(2)将角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef966cdd137b3b10e290201b4d17542e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
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