在
中,角A,B,C所对的边分别为a,b,c,满足
.
(1)求
的值;
(2)若
,且
的面积为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c55ae48ef3d68e432bda30f4042100.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5201fc26d013f6fb889933c0e32f5c53.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5b763032c085a1e60822d8dc1b3605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980ab4deb9e7f2bc9288787f5243a4d2.png)
22-23高二下·天津河北·期末 查看更多[4]
天津市河北区2022-2023学年高二下学期期末数学试题天津市武清区杨村第三中学2023-2024学年高一下学期第一次过程性评价数学试题河北省衡水市枣强中学2023-2024学年高一下学期第二次调研考试数学试题(已下线)专题02 解三角形、平面向量、复数和不等式(四大题型)-【好题汇编】备战2023-2024学年高二数学下学期期末真题分类汇编(天津专用)
更新时间:2023-06-30 21:42:45
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】在
中,已知
,
,
.再从条件①、②、③这三个条件中选择一个作为已知,使得
唯一确定,解答下列问题:
(1)求
的值;
(2)
的角分线
交
于点
,求
的面积;
①
;②
;③
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb5bac75f36bb1dc5c8190d4dbe681d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd44fb80b50c0cbced055f2ff50619b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2958030ec9d7543dda1f529593a915e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e02e6946143207c276f7430942c1b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/637952726dfbcc9f64efc288b2ceb52f.png)
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适中
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解题方法
【推荐2】已知锐角
的三个内角A,B,C的对边分别为a,b,c,且满足
.
(1)求
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31057d00c3e88219b1e5c0d8ccb0b1bc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5201fc26d013f6fb889933c0e32f5c53.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff400c098ae6bf6abd24651a5a21114e.png)
您最近一年使用:0次
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(0.65)
【推荐1】设函数
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(1)求函数
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc4c4c4005b30917153ed514c28c0f6.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8890af726c860b88d73f0b17e805160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/093fac2026bbf9c08885fd401cdd48bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
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适中
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【推荐2】已知函数
.
(1)若
,
,求
;
(2)把
的图象向左平移
个单位长度,然后把图象上各点的横坐标变为原来的
(纵坐标不变),得到函数
的图象,求函数
的单调增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e436d2513cd6be6c6fdbdae3a9479a05.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf487193d7af91b3231147e82f52c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f201f6e84279e80b85f394f4d930ed41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f484115a9df1b6060d6b14df85c6f38.png)
(2)把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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解答题-证明题
|
适中
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解题方法
【推荐1】在
中,内角A,B,C所对的边分别为a,b,c,且
.
(1)若
,求角C的大小;
(2)求证:
,
,
成等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705b7a48107eb60c027cc22d786d3a01.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac955bd88afbb45aaf71171efe5e8883.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7167cd55af72b5699802b277c33326.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17497a284ddace3ee09fc81c2302628f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237bab1cfbf1bc851027fce1b2092d4d.png)
您最近一年使用:0次
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适中
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【推荐2】在
中,已知角A、B、C所对的边分别为a,b,c,且满足
.
(Ⅰ)求B;
(Ⅱ)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a85eb29a3a20d9970e600f27d3e7d6.png)
(Ⅰ)求B;
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab1c19b66cda3fb899f06d9a25e973c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae7888d643678ea18f83f3237732052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解答题-问答题
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适中
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解题方法
【推荐1】已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
的左、右焦点分别为
,
,点D在C上,
,
,
,且
的面积为
.
(1)求C的方程;
(2)设C的左顶点为A,直线
与x轴交于点P,过P作直线交C于G,H两点直线AG,AH分别与l交于M,N两点,O为坐标原点,证明:O,A,N,M四点共圆.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434249d6640b0c1a712d215cf8b83d5c.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/ac716e1d53f81d2c8734d6e122afede8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345d76f8fb4c25887cd2490e3ea82a43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1bd7d4e8dab2a650eab87bcbd7136bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df8816403d7f16b505ffc4a3574204d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
(1)求C的方程;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef3dcb08d0a3ed91352deb65d8e33ccc.png)
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适中
(0.65)
名校
解题方法
【推荐2】在
中,已知
.
(1)求角
的大小;
(2)若
的面积为
,
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的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95d37b2f8d5da8eaa07442b941017c1c.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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