如图,在
中,
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4cb73e9d976cbfe9c590044fa69dd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf40643d8abe5b3a14c3d31266cb0aeb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/17/e50388aa-7a94-46c0-abf3-d10825b187f7.png?resizew=212)
24-25高一上·全国·课后作业 查看更多[2]
更新时间:2024-05-30 21:38:13
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相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】在
中,角
的对边分别是
,
,且
的面积为
.
(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/9407f6e5b204d6f97ebb857fbc8e14f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ca820a456491348e72587e4fe10bc6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60dacba75c7a9503e8a63b72c1dcb0f4.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐2】在
中,角A,B,C的对边分别为a,b,c,若
,且
的面积为
.
(1)求角A;
(2)求点A到边BC的距离的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b73312f4d88ea0453a009e5cb1cb87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
(1)求角A;
(2)求点A到边BC的距离的最大值.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知
的内角
的对边分别为
的面积为
.
(1)求
;
(2)若
,且
的周长为5,设
为边BC中点,求AD.
![](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/718b5b48053888ab3b234b8cb56a0fc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c11d0870749cb234fe2cffa9dc0c73.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
【推荐2】在①
,②
,③
, 这三个条件中任选一个, 补充在下面问题中并求解. 问题: 如图, 在
中, 角
所对的边分别为
是边
上一点,
,
, 若_________,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/e739ca19-24ec-463f-8784-1d87e160f8b7.png?resizew=224)
(1)求角A的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa9c13061550b8d9108d9771a8b4c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dceab5bdf602d6f700b5ea28ae98e63a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a6eabf14910192d773e0a085667d0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048e752b1bffcb2c3c2d80efc511c92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b6bef27de230acad352f25e954f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d1070a40da6ac3fb1dff0ef1cce9019.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/e739ca19-24ec-463f-8784-1d87e160f8b7.png?resizew=224)
(1)求角A的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c0d3fe7dea61468a7b647de2ff89d1.png)
您最近一年使用:0次