如图所示,在平行四边形
中,
,
,
是边
的中点,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00258017566a44eb4c3db710a1989e11.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.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/50d3e7389e7e03fad36a3a65003ca3f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8356099d3bbee3726242c2dd0e0d81c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00258017566a44eb4c3db710a1989e11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/9ea8a6d4-80a2-4e4d-b997-fafdb26e6a4e.png?resizew=151)
更新时间:2020-01-03 21:33:02
|
相似题推荐
填空题-单空题
|
较易
(0.85)
名校
解题方法
【推荐2】若
、
为锐角,
,
,则角![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ca3f0a4b2d06539e74594736881aaa.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a8b16358f2ab3ba16c0de9f4c5aca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ccd1dfdc167165bcad456709247c723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ca3f0a4b2d06539e74594736881aaa.png)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
【推荐1】如图:已知
中,D为
边上靠近C的一个三等分点,E为线段
的中点,连接
并延长,使
的延长线交边
于点F.则线段
与线段
长度之比_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/1522139b-04f3-4861-bfc8-11521bdea407.png?resizew=173)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
解题方法
【推荐1】已知
是平面内不共线的两个向量,
,
,若
,
共线,则
等于________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10814bc3db929e79874befe96cf4e3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080b04edc4e58a08a06deec6e801a93e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0856e3982385f9b86efaa579d6ff0fb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
名校
解题方法
【推荐2】已知等边
的边长为2,M,N分别为
,
中点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb40c96b2d1d2ab6163a386e5bde3c3e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb40c96b2d1d2ab6163a386e5bde3c3e.png)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
【推荐1】向量
在正方形网格中的位置如图所示,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/073cc1a4bfc55840bab1b09be90cca70.png)
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89acc82cb747ff57569b0bcaf68f877d.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e12e95f703ad30ab9a3d38376830989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/073cc1a4bfc55840bab1b09be90cca70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f69fbdf97dadf8865375ecda3e7b5e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89acc82cb747ff57569b0bcaf68f877d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/13/c3d7eae8-e9c5-4c51-870f-cdba9c6ba1e8.png?resizew=162)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
名校
【推荐2】
的三个顶点
,
,
,则顶点
的坐标为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a18a7caa080988802ba1145b4fe4203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2932df2a491cd8f7441dd60e7a3c9a3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3f9d5a2752ca0a9cf9f5b8ad62d9fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次