在平行四边形
中,
,
,
,
是线段
的中点,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb8fb552b9e21dbaba74d11aa747790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba209a52ba69335ae5c3ff8a6a84e3c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
20-21高一下·四川达州·期末 查看更多[2]
更新时间:2021-08-06 10:25:28
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相似题推荐
单选题
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解题方法
【推荐1】已知平行四边形ABCD中,
,
,四边AB,BC,CD,DA上的点E,F,G,H分别使得
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51e0f9d0d28bfb81ad132e0064402573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927fbecc58e068e6a2d3a4183e890a61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598a5bec92ae94690a3b600e954e994a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eebc1763c44c52da1d7ef7e5193c955.png)
A.3 | B.![]() | C.2 | D.0 |
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【推荐2】设D为
所在平面内一点,且满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b85a84ae237d8b913ccefcb9cddac843.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐3】
中,点
为
上的点,且
,若
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252f5a7a4ffc29fbc684493d5aa937e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bab16a968449fa0dfa56d24c45be38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d285e611381e448100f126c4d7a9b78.png)
A.![]() | B.![]() | C.1 | D.2 |
您最近一年使用:0次
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解题方法
【推荐1】在边长为2的等边三角形
中,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41a28836a71679ffd52dbfd515223bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3e537fd519f52ba31a612773645973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41a28836a71679ffd52dbfd515223bab.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】设向量
,
与
的夹角为
,且
,则向量
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4154a57dc51aa98a4d83b15a99d2c756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b199d124fb9a5bc8438c9884f04534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5303a18dfa0bf58161bf741d9bef8a3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
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解题方法
【推荐1】已知向量
的夹角为
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4764549f863245cbd25a3928a316c466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0e72407106ad05a1544c02c24ce1a5a.png)
A.49 | B.7 | C.![]() | D.![]() |
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解题方法
【推荐2】已知
,
,若
,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/856f48b710f6c3cb89b58f3ceb17b110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a984f5b91e724fc642618f7f645b29af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6790c2bd6de8ffb686a111a8e7efac0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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