名校
1 .
中,已知
,
,
,
为线段
的中点,且
,则
的值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b298821b63ccdca9f276607fa66047d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab53ccbc72f68df291ac416404a11c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4514ab8cceedd1ad7ba3169c371eae52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bbef7b0a3ffea8a0e36cc58664425fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d1d3c63ba6ac31fb08612af77878a0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 如图,在
中,
,
,
是
的中点,则
( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/310b855b-8ca8-4cfe-a629-e254d0a5dcc9.png?resizew=155)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9427ec6d299cf9866ba2a160b0882f2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/310b855b-8ca8-4cfe-a629-e254d0a5dcc9.png?resizew=155)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 已知向量
,
,
,设
是直线
上任意一点(
为坐标原点),则
的最小值是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b751584a337c1bce97c98ee8e0087082.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b408d1c163cf380c87f4a1fe3d587fd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36124bd457ef6c1f74006d19d7508f4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a28be4d5a16cf245f6fa7c4088fee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e87065bcc3b39454f505e7fa3c6c73f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 设向量
,
不共线,
,
,
,若
,
,
三点共线,则实数
的值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c449da09755bcd72cb64f89747f3dd0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a587159eae84ff770cc8fa9734e5e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3c195458907311aee69bc9eb0622bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f9df3dfe63c6907992e9b9ac670805.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f29196cb56c88e571c9a80b7211cdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289d7a880379d6060065c829b45b0ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9faeed172ec5b88966b0d1c52748d41.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
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解题方法
5 . 已知函数
,若
且
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a8d6abdbc55e9bd928e6b4dbf0b7f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccb11cd41d049bf895b442194731f1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576e0b056ffdf901249d21b2a24fa2c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c9121cede0ee0562e23b8a26b34616.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 若两个函数的图象经过若干次平移后能够重合,则称这两个函数为“同形”函数.给出下列三个函数:
,
,
,则.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adadd2255df2cc0ff469008168d0055e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dc2af7a342eaafd31566f8c93095d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8546d79a4ba473734cc4ec72e2e4872d.png)
A.![]() ![]() ![]() |
B.![]() ![]() ![]() |
C.![]() ![]() ![]() |
D.![]() ![]() ![]() |
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7 . 在复平面上,一个正方形的三个顶点对应的复数分别是
、
、
,则该正方形的第四个顶点对应的复数是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828c23f68b6fc90f705a9d691bcfab35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550917feb764ef01cb0452714c1bda6a.png)
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2018-07-02更新
|
581次组卷
|
3卷引用:【全国百强校】北京海淀区北京大学附属中学2016-2017学年高二下学期期末考试数学(理)试题
名校
8 . 已知函数
.
(1)求函数
的定义域及其单调减区间.
(2)求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf12a07476f170f21d350fccb9ccdb1.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
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9 . 已知
,
均为单位向量,它们的夹角为
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7df5d272bcef79e8858224694d433bf.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/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7df5d272bcef79e8858224694d433bf.png)
您最近一年使用:0次
2018-07-02更新
|
441次组卷
|
4卷引用:【全国百强校】北京市第八中学2016-2017学年高一下学期期末考试数学试题
名校
解题方法
10 . 已知向量
,
,
,且
,则实数
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34914bac9636aea719161a52591c72a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c9aa855212c855d9b53e9dd068c87f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2d296315fa1ecf1abe7b84ac206ec74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408f46f9fac0f090054fe07baec05c9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
您最近一年使用:0次
2018-07-01更新
|
1049次组卷
|
10卷引用:【全国百强校】北京市第八中学2017届高三上学期期中考试数学(文)试题
【全国百强校】北京市第八中学2017届高三上学期期中考试数学(文)试题江苏省南通市启东中学创新班2017-2018学年高一上学期期初数学试题北京市第十五中学2019-2020学年高三数学上学期期中考试数学试题北京市第六十六中学2024届高三上学期期中质量检测数学试题贵州省铜仁第一中学2019-2020学年高一下学期开学考试数学试题上海市虹口区上海外国语大学附属外国语学校2019-2020学年高二上学期期末数学试题海南省北京师范大学万宁附属中学2019-2020学年度高一下学期开学考试数学试题辽宁省东北育才学校2021-2022学年高三上学期第三次模拟考试数学试题河南省焦作市第四中学2022-2023学年高一下学期3月月考数学试题内蒙古赤峰市敖汉旗新惠中学2023-2024学年高一下学期4月月考数学试题