法国著名军事家拿破仑·波拿巴最早提出的一个几何定理:“以任意三角形的三条边为边向外构造三个等边三角形,则这三个等边三角形的外接圆圆心恰为等边三角形的顶点”.如图,在△ABC中,内角A,B,C的对边分别为
,且
.以
为边向外作三个等边三角形,其外接圆圆心依次为
. 则角![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b28493133d5e7cbbfa6a63bfecab966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0e08a39c6619123557148d195abfbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a8c02f5689da8775781982486886c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/14/ad3a0d13-8fd8-4fd1-b4b6-f47670a9f130.png?resizew=131)
2023高三·全国·专题练习 查看更多[1]
(已下线)模块二 情境9 经典数学问题
更新时间:2023-06-18 15:42:08
|
相似题推荐
填空题-双空题
|
较易
(0.85)
解题方法
【推荐1】函数
的奇偶性是________ ;单调递增区间是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4205eb4381cee3e6fe1b99fec252f575.png)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
【推荐2】已知sin
=
,
∈
,则cos
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a1486450f300f451e711d2238eaca1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051265e0a08d27157097c8166529b374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a1486450f300f451e711d2238eaca1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a81c493b977faf296fad5604888e5bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b9b35da473d7f5a3f0eb23391fbc01.png)
您最近一年使用:0次
填空题-双空题
|
较易
(0.85)
解题方法
【推荐1】若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
____________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2b8dae45cd30a752aedb1ca66c30a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/536e072eb0439a5e5b430cd55a129374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2b8dae45cd30a752aedb1ca66c30a.png)
您最近一年使用:0次