名校
1 . 在
中,
,
,
,
为线段
的中点.
(1)求
的长;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b32167424064511aa8224c78e06e94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a3536b3b227aab2aaab9dbedf5a6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba1883c53ebf30a9e53e9b7f3bce4ba.png)
您最近一年使用:0次
2022-11-15更新
|
236次组卷
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4卷引用:陕西省延安市2022-2023学年高二上学期期中理科数学试题
陕西省延安市2022-2023学年高二上学期期中理科数学试题陕西省西安市第七十五中学2022-2023学年高二上学期期中理科数学试题(已下线)6.4.3余弦定理、 正弦定理 第1课时 余弦定理(分层作业)-【上好课】江苏省连云港市赣榆第一中学2022-2023学年高一下学期3月月考数学试题
名校
2 . 已知函数
的最小正周期为
.
(1)求函数
在区间
上的值域;
(2)已知
分别为锐角三角形
中角
的对边,且满足
,
,求
在
方向上的投影.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b45767b68d71365c9fe15aed388020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf1f865bafd4a820406d336d99f8091.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d29e476d2f8daa03912e42d1ed095a26.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a54d033e7259dc17ad3ead1bf2f6d54f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f048e24752d417ffbc56987ea3849fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbaeae7045ad94158cdf5ae97073bc17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34bf00aeba15bce2cdee8ab487388dc.png)
您最近一年使用:0次
名校
3 . 在
中,
,
,
,
为线段
的中点.
(1)求
的长;
(2)求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b32167424064511aa8224c78e06e94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a3536b3b227aab2aaab9dbedf5a6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
名校
4 . 在
中,内角
所对的边分别为
.已知
,
,
,
.
(1)求
的值;
(2)求
的值.
![](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/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1ec9c5eaed4c211a040a2a33fb7c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6beb17d468d0e90f9c08a8dbbc05541.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56154371f02d75e56a4c65ccaa7d1da9.png)
您最近一年使用:0次
名校
解题方法
5 . 已知
的内角
的对边分别为
,已知
.
(1)证明:
;
(2)设
为边
上的中点,点
在
边上,满足
,且
,四边形
的面积为
,求线段
的长.
![](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/e289885f61af21a6a78d68cd1e7588c2.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa8d75a6638e08eedbff8662267da6f.png)
(2)设
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e1bd4f72b3edd9647378d1191857fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9d54cbbf601f4583659771eb534997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43cabce0571b0171cdcf294bbe976fde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
您最近一年使用:0次
2022-11-11更新
|
417次组卷
|
4卷引用:陕西省咸阳市武功县2022-2023学年高二上学期期中理科数学试题
陕西省咸阳市武功县2022-2023学年高二上学期期中理科数学试题陕西省咸阳市武功县2022-2023学年高二上学期期中文科数学试题河北省高碑店市崇德实验中学2023届高三上学期期中数学试题(已下线)专题突破卷13 解三角形的图形归类(含中线、角平分线、高)-2
解题方法
6 . 已知函数
,
.
(1)求函数
的最大值;
(2)设
的内角A,B,C的对边分别为a,b,c,且
,
,
,求a,b的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e621d2eaea21be991b3b2eafe666b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd5b9bbd3d22bd2cef53dd4b9691257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a7412ae4008dd65cad902ad132711a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4a93c05337d718428222cced9e91d06.png)
您最近一年使用:0次
2022-11-11更新
|
228次组卷
|
3卷引用:陕西省安康市2022-2023学年高二上学期期中理科数学试题
名校
解题方法
7 . 在
,∠A、∠B、∠C的对边分别为a,b,c,已知a,b,c成等差数列.
(1)证明:
成等差数列;
(2)求角B的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e3bc37f2a14ea99d7c7da720c94fbb.png)
(2)求角B的范围.
您最近一年使用:0次
名校
8 . 如图,已知圆
的半径为
,点
在直径
的延长线上,
,点
是圆
上半圆上的一个动点,以
为斜边做等腰直角三角形
,且
与圆心分别在
两侧.
![](https://img.xkw.com/dksih/QBM/2022/11/9/3105805454598144/3106149012086784/STEM/5dd05ea62a994ee78281510bfe1f0d6e.png?resizew=154)
(1)若
,试将四边形
的面积
表示成
的函数;
(2)求四边形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/2022/11/9/3105805454598144/3106149012086784/STEM/5dd05ea62a994ee78281510bfe1f0d6e.png?resizew=154)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259728433d68902065408fb6a34c6d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4af2b217f3d432178546e8ece720c220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4af2b217f3d432178546e8ece720c220.png)
您最近一年使用:0次
9 .
的内角A,B,C的对边分别为a,b,c,已知
.
(1)求角C;
(2)若
,
的面积为
,求c.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb72a65d9bcb64b022a0eb177cfd17d.png)
(1)求角C;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289295fad0d1c11fc74470e8bb0c6be0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
您最近一年使用:0次
名校
解题方法
10 . 在锐角
中,内角A,B,C所对的边分别是a,b,c,且
.
(1)求角
的大小;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a26d50625247cc060e2520205c8f1cb.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11f787941cb1abfe9bb757276b765c0b.png)
您最近一年使用:0次
2022-11-09更新
|
706次组卷
|
6卷引用:陕西省延安市2022-2023学年高二上学期期中理科数学试题