2022·全国·模拟预测
1 . 设△ABC的内角A,B,C的对边分别为a,b,c,若
,M为边AB上一点,且满足
.
(1)求
;
(2)若
,求△ABC面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059dceaf4d5d4780b4b950fd317a62db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba486b7a12ec874644dc5fea93a56916.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32e2f2d7147cf1699fbfdef9cf4af74.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57434cf8c8496bf75f6856debd4fc97.png)
您最近一年使用:0次
2022·全国·模拟预测
解题方法
2 . 已知锐角
的内角
,
,
的对边分别为
,
,
,且
.
(1)求角
的大小;
(2)若
于
,且
,
,求
的面积.
![](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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4dd84eab94aa25a635d442c52266fb2.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25fa5f99d0ce1200ed7e426e96a0de96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ace52b64e1e7dfc5211e033255b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2022·全国·模拟预测
3 . 在①
,②
这两个条件中任选一个补充在下面的横线上,并解答.
在
中,内角A,B,C的对边分别是a,b,c,S为
的面积,若______.
(1)求角B的大小;
(2)若
,
,
,求
的周长.
注:如果选择多个条件分别作答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fba9a94dbc043ae1fa16e30ad817b16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1786cc7418c11cd209f5cf45201fa7.png)
在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)求角B的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6156f13ec4160f68a3cd15a30f94162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8045e841107e17eb8170d0b582a0e38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1f4f255d191786f7d330d278868c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
注:如果选择多个条件分别作答,按第一个解答计分.
您最近一年使用:0次
2022·全国·模拟预测
解题方法
4 . 在△ABC中,内角A,B,C所对的边分别为a,b,c,
,且
.
(1)求角C的大小;
(2)若
,求△ABC面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581810f05408d843665a8e79908445e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35ac7a959a0ac95de07aa0f456f780f2.png)
(1)求角C的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe550a188fbddebbdc5ada963d6ea670.png)
您最近一年使用:0次
2022·全国·模拟预测
解题方法
5 . 在△ABC中,内角A,B,C所对的边分别为a,b,c,且
,
.
(1)求A的值;
(2)若b=2,求△ABC的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d26af5438a7f77f1b22a07c28c110f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86c89dbdfcc154b6afcbae7b50096fc.png)
(1)求A的值;
(2)若b=2,求△ABC的面积.
您最近一年使用:0次
2022·全国·模拟预测
解题方法
6 . 在
中.
.
(1)求角
;
(2)若
,点
是线段
的中点,
于点
,且
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a77834c170aa8e9aff9d5a9ebe67b76.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68fbbd17c89f03dbb61cd6ffdb9a0344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/313edfc51492fecdbc9a86ec29e6bc45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
您最近一年使用:0次
2022·全国·模拟预测
解题方法
7 . 在
中,内角
的对边分别为
,且
.
(1)求角
;
(2)若
为锐角三角形,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/c637d23b0b2d866169911b3f8f196e9c.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c2bb3b5731c492fcc0d1122d4fd6fb.png)
您最近一年使用:0次
2022·全国·模拟预测
解题方法
8 . 过椭圆
的左、右焦点
,
作倾斜角分别为
和
的两条直线
,
.若两条直线的交点P恰好在椭圆上,则椭圆的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-05-17更新
|
2035次组卷
|
9卷引用:2022届高三普通高等学校招生全国统一考试数学押题卷(三)
(已下线)2022届高三普通高等学校招生全国统一考试数学押题卷(三)(已下线)重难点12五种椭圆解题方法-2(已下线)专题38 椭圆及其性质-4(已下线)专题28 轻松搞定圆锥曲线离心率十九大模型-2(已下线)考向35 离心率的多种妙解方式(十四大经典题型)-1(已下线)第14讲 椭圆离心率6种常考题型-【同步题型讲义】2022-2023学年高二数学同步教学题型讲义(人教A版2019选择性必修第一册)(已下线)重难点突破04 轻松搞定圆锥曲线离心率十九大模型(十九大题型)-2(已下线)第05讲 椭圆及其性质(八大题型)(讲义)-3浙江省绍兴市新昌县鼓山中学2023-2024学年高二上学期期中考试数学试题
名校
9 .
的内角
,
,
的对边分别为
,
,
,面积为
,
.
(1)求
;
(2)若
,
,
成等差数列,
,求
.
![](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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09a32809c6c268485b6316caea4df7a4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a24a8f5e8fb89381f8add6549170345.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03005d17bf564371ad29fea41f5c650.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a24a8f5e8fb89381f8add6549170345.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721e29b775e696045f44a4b1e7f74ef2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1225fd03e8e8730dac8487dae5387635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2022-05-16更新
|
459次组卷
|
2卷引用:2022年普通高等学校招生全国统一考试模拟试题(全国乙卷A)理科数学试题
10 . 在
中,内角A,B,C所对的边分别为a,b,c,已知
.
(1)求角C的大小;
(2)若
,P为
内一点,
,
,则从下面①②③中选取两个作为条件,证明另外一个成立:①
;②
;③
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e1dcf28ab3fb22a4aecd0d5d6b5f9e.png)
(1)求角C的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eea78bf026d76f1cb9cc3dc9349a193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b88e9a4616bf02cc44fefd7eaf1e4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b58bbc02479917ad761a24eaae0dbfd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56bb7fcd7623bc7d2b8d33be10193159.png)
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2022-05-15更新
|
226次组卷
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2卷引用:阳光桦树2022年普通高等学校招生统一考试押题卷理科数学试题