如图,
为
内一点,且
,延长
交
于点
,若
,则实数
的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56522166ed4c6cbb47750ac7bd5e7626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76bbfdd1c9a3cee4c840122ec93027a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/36e0343c-19d5-4a70-9ebc-6e2de7cba2ed.png?resizew=130)
18-19高一下·上海普陀·期末 查看更多[3]
上海市曹杨二中2018-2019学年高一下期末数学试题山东省济宁市嘉祥县第一中学2019-2020学年高一6月月考数学试题(已下线)上海期末真题精选50题(小题提升版)-2020-2021学年高一数学下册期中期末考试高分直通车(沪教版2020必修第二册)
更新时间:2019-08-23 19:50:30
|
相似题推荐
填空题-单空题
|
适中
(0.65)
名校
【推荐1】已知O为△
内部一点,且
,则△
的面积为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b5e8b029fe0096a2380f767c338912.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
【推荐2】已知不共线向量
,
,
,若
三点共线,则实数
等于_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb45d79ed37ed115c473f52c60d02a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be25f501d4556ba956dcf8cebb130474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e20a7e27b714339a9b98aa915f0082.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
【推荐1】在
中,
,
,
为
边的中线,
为
的中点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/645ce289c7cd2c004a200cfe5372d36b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece8b2caad657f29ad830d78abd54a66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1af98f1fb74e141fe4652c337f27bc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/645ce289c7cd2c004a200cfe5372d36b.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
解题方法
【推荐2】如图,边长为2的等边三角形的外接圆为圆O,P为圆O上任一点,若
,则2x+2y的最大值为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36965c4fa2678fe61578db7f38ac37c3.png)
您最近一年使用:0次
填空题-双空题
|
适中
(0.65)
【推荐3】如图,点G为△ABC的重心,过点G的直线分别交直线AB,AC点D,E两点,
,
,则m+n=________ ;
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd569ef9f9dfd0bfd989a7ea85cd2d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f85c32db8c9b9e974f606d7d326bbe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c160f9d6f12295cae16102520457f627.png)
![](https://img.xkw.com/dksih/QBM/2022/7/15/3022876147294208/3026630448226304/STEM/9920440a94844bea8b027d633d31bdab.png?resizew=162)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
【推荐1】已知正方形
的边长为2,
是
上的一个动点,则求
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d9d9acd53424798395a370da23e4d4.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
解题方法
【推荐2】在
中,
,
,若
(
是
的外心),则
的值为____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9353282266be4204a7b6e6f237176855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd5fcdc2b2724d23608cc9b6f1110bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d94d4063cfc5a4589cbf6eca7a595d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450398974b1561ca801e102e16df6789.png)
您最近一年使用:0次