名校
解题方法
1 . 如图,矩形
中,
是对角线,设
,已知正方形
和正方形
分别内接于
和
,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb2cf0e95fdf1fd8a5b01d3dfd905e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ce5d6ca24e249f7172e51c154509b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27561e2e6b340c49b242804a53e1d5b5.png)
您最近一年使用:0次
2024-03-07更新
|
189次组卷
|
12卷引用:四川省德阳市高中2022-2023学年高三上学期第一次诊断考试文科数学试题
(已下线)四川省德阳市高中2022-2023学年高三上学期第一次诊断考试文科数学试题四川省德阳市高中2022-2023学年高三上学期第一次诊断考试理科数学试题四川省德阳市2023届高三第一次诊断考试数学(文)试题黑龙江省哈尔滨德强学校2022-2023学年高三下学期清北班阶段性测试(开学考试)数学试卷上海市杨浦高级中学2023届高三下学期开学考试数学试题(已下线)专题05三角函数与解三角形(选择填空题)(已下线)模拟检测卷02(文科)(已下线)第四章 三角函数与解三角形 第二节 同角三角函数的基本关系与诱导公式(B素养提升卷)黑龙江省哈尔滨市德强高级中学2023-2024学年高一下学期开学验收考试数学试题上海市南洋模范中学2023-2024学年高一下学期初态考试数学试卷(已下线)6.4.3余弦定理、正弦定理(第4课时)(已下线)9.2正弦定理与余弦定理的应用-同步精品课堂(人教B版2019必修第四册)
解题方法
2 . 在
中,
,
,
,若
为
的中点,且
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df81cda12d7601d58b1d9c7c180c4d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c884a45b56bc34d79273b067c1520b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.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/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980ab4deb9e7f2bc9288787f5243a4d2.png)
您最近一年使用:0次
3 . 如图,无人机在离地面高
的
处,观测到山顶
处的俯角为
,山脚
处的俯角为
,已知
,则山的高度
为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/51e2c31e-0313-4515-8947-3ab7dc0a8149.png?resizew=199)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e5f7c44d51c04d6a1f79b29cf33156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c12e76fbd84eeec721386bd3b04cc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/51e2c31e-0313-4515-8947-3ab7dc0a8149.png?resizew=199)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 在
中,
均在线段
上,
,若
,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/bba8bea5-d76b-438c-abe8-9c895f86bb4c.png?resizew=192)
(1)求
的值;
(2)求
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6118d636b39f7e412819c00c9841ae0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d85485c58a99c1ab569a1aa03b80419f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0268d04b9dea7629af27af9a0285a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/133760237c0ccf2d6a83786925b6d23c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/bba8bea5-d76b-438c-abe8-9c895f86bb4c.png?resizew=192)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
名校
5 . 如图,四边形
为梯形,
,
,
,
.
的值;
(2)求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31896dee1740e367c2370f4926322dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2034629cf0cf8ec3cb25113de96c0957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fdb666321e6637175260c1fbc9f1f92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b49530dac385216300ab53ebf82450.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
2024-02-27更新
|
1144次组卷
|
3卷引用:1号卷·2022年高考最新原创信息试卷(六)理数
6 . 如图,为测量山高
,选择A和另一座山的山顶C为测量观测点,从点A测得点M的仰角
,点C的仰角
,以及
.从点C测得
,已知山高
,则山高![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2b3247afa684b10c8e1da99cf33d5b.png)
___________ m.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4794cf7c57bdd4825d9e6615e2527a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c646c683fbe522edb7ea54fd3ad873d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a61ee9c2a3a4f2690dad01ef53ede1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a56b88dab0e12fb1051a2f19500187bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5412c2c0baa2fc01485358af68d6e885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2b3247afa684b10c8e1da99cf33d5b.png)
您最近一年使用:0次
2024-02-27更新
|
472次组卷
|
3卷引用:1号卷·2022年高考最新原创信息试卷(三)理数
7 . 在
中,内角
所对的边分别为
,且
.
(1)判断
的形状,并说明理由;
(2)若
,求
的最大值.
![](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/6b8bf0e29d3e0d6d61404ccb353d44e0.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08ce80e91fdf435a8e3ec05be990e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed200ba906e0cf2b1ea8be47681940ad.png)
您最近一年使用:0次
2024-02-25更新
|
314次组卷
|
2卷引用:1号卷·A10联盟2022届全国高考第一轮总复习试卷数学(文科)试题(九)
解题方法
8 . 在
中,内角
,
,
所对的边分别为
,
,
,若
,
,则
周长的取值范围是______ .
![](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/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f839c6e97b94e0e908416147b6e2c8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2024-02-25更新
|
327次组卷
|
2卷引用:1号卷·A10联盟2022届全国高考第一轮总复习试卷数学(文科)试题(九)
解题方法
9 . 在
中,内角
所对的边分别是
,
,则该三角形的形状是( )
![](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/dad2f61d3c0dc2e58357853f581c6110.png)
A.直角三角形 | B.等腰三角形 |
C.等边三角形 | D.等腰直角三角形 |
您最近一年使用:0次
10 . 在
中,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6d51f237708f8169a2d260d0a52b3b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d29c1b36d35c58d2c1a156f488ba7b5b.png)
您最近一年使用:0次