名校
1 . 已知
,
,
,若
,
,
可构成三角形,则m=____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fcc9e192203753fae2b187f4262abe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6999136bead1fde0e7e74e0f5813126a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29794e57046f8134135c9dc00e3bc61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c308ea87b699ee1dcb879a568899de.png)
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2 . 三角形ABC中,BC边上的中垂线分别交BC,AC于D,M,若
,AB=2,则AC=( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/4/6e9cfa5a-f253-47d6-9209-a7e13ce286af.png?resizew=140)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9053b2eda5dcad3b86b19ec5ba50ea70.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/4/6e9cfa5a-f253-47d6-9209-a7e13ce286af.png?resizew=140)
A.3 | B.4 | C.5 | D.6 |
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3 . 已知O是三角形ABC的外心,AB=2,AC=1,∠BAC=120°.若
,则
=___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/007988784b4fec8d376c32d029678a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72850427e83ff19a24305783e080b280.png)
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4 . 将一圆的六个等分点分成两组相同的三点,它们所构成的两个正三角形扣除内部六条线段后可以形成一正六角星,如图所示的正六角星的中心为点
,其中
、
分别为点
到两个顶点的向量,若将点
到正六角星12个顶点的向量,都写出
的形式,则
的最大值为
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/f461fad2-17af-45fc-b9e4-6fdb9dc68461.png?resizew=117)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad178b3ff9f7f6aec00d5a80f063d46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876eeed546bcea6c38bd532969eed8f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe12ba1cfdab30522411c0bf0abcfeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/f461fad2-17af-45fc-b9e4-6fdb9dc68461.png?resizew=117)
A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次
2019-11-07更新
|
146次组卷
|
3卷引用:上海建平中学2019-2020年高二上学期10月月考数学试题
上海建平中学2019-2020年高二上学期10月月考数学试题上海市西南位育中学2019-2020学年高三上学期期中数学试题(已下线)8.1 向量的概念和线性运算(作业)-【上好课】2020-2021学年高一数学下册同步备课系列(沪教版2020必修第二册)
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5 . 如图,设
,
,
是平面上两两不平行的三个非零向量,
,有下列命题:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/fdb19740-e0ee-45e9-ac3b-10d6f29626e5.png?resizew=170)
① 关于
的方程
可能有两个不同的实数解;
② 关于
的方程
一定没有实数解;
③ 关于
的方程
的实数解为
或
;
④ 关于
的方程
没有非零实数解;
其中真命题是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1887a1513aee097a396e99d7399c4e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4851948ee018b0cf4e52b04f738f3f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d4fbbdc4fea8bf80bd7d78f78bf30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/fdb19740-e0ee-45e9-ac3b-10d6f29626e5.png?resizew=170)
① 关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f709878074da9c9598b15fb106798994.png)
② 关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f709878074da9c9598b15fb106798994.png)
③ 关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83a6ffaca26e0959c27cde3218fa488e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a69eda8f1bb9a7409fe905397f0defac.png)
④ 关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83a6ffaca26e0959c27cde3218fa488e.png)
其中真命题是
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6 . 已知点
、
、
,平面区域P是由所有满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3192e4a1b9a004461179ee7a048c7af6.png)
的点M组成的区域,若区域P的面积为16,则m的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6cffa52177f31cd10c42d00f69d4da1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d03fa28c117649b0fdfe17eed7b583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aee5bc779eb9951294e94b477a719af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3192e4a1b9a004461179ee7a048c7af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3ab6b01ea33abadcf379903d26e36c.png)
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7 . 已知
中,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7372a3f9fdaa362564b0418ba05b1ad9.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b536ac375a0b74e9c7efbc585f987f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0c566d351afa62188696128ce18f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf586eb3ce07197e6fe31b5f82d695e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7372a3f9fdaa362564b0418ba05b1ad9.png)
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2019-11-07更新
|
111次组卷
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2卷引用:上海市进才中学2019-2020学年高二上学期10月月考数学试题
8 . 在三角形
中,
,点
在直线
上,且
则
可用
表示为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea1455cf04aa8f3553d59123c17385a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2109a59b5ced48bf27a7eaa69ecf9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c848f689e35dfd74f499e6e0437df1d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fa2fcefaf3d8868da0cb52877c5247.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 已知向量
,
,
,
是线段
上两点,且
,
,则向量
与
的关系是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fce71853e65c6daa3c4151411e3b89ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279c2ea2054bc260a27880236f734543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/9b75276fef4b1e99859e9392be1f4017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b507076702be890c3d8f14b8e67f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d036188ce294e3c7427d0b7d2294fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e00b863991d441829e9ccbc21a796301.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() ![]() |
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2019-11-05更新
|
513次组卷
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4卷引用:新疆实验中学2019-2020学年高二上学期期中考试数学(文)试题
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10 . 若实数
满足
,其中
是
边
延长线(不含
)上一点,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2158631a46b67a2169240d9ec80fcf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2019-10-23更新
|
401次组卷
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2卷引用:上海市交通大学附属中学2019-2020学年高二上学期9月月考数学试题