18-19高二上·广西南宁·阶段练习
1 . 已知向量
,
满足
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31a02f3cd937c4fec593dfc7ebcf1307.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/479779070b95c1c2845f0a24dc8d5f17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae6c3686f14d23772f33ce7131f1d1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31a02f3cd937c4fec593dfc7ebcf1307.png)
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2018高三·全国·专题练习
2 . 如图,已知▱ABCD的边BC,CD上的中点分别是M,N,且=
,
=
,若
(x,y∈R),则x+y=
您最近一年使用:0次
3 . 已知向量
,
.若
时,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
____ ;若对任意
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f349fbda51d442c30ed66840afed1403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be4ce23c120c39a07fa1bba1d8ca32b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e2c8d466ab8eb5ecd38060b53bbe8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d76ee2e81f447f84a3e0b39c0388ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb66f4db41478c23128adc14f2796556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1a48ada3e57fb3c73101720b24c644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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2019-09-12更新
|
220次组卷
|
3卷引用:广西百色市百色民族高级中学2021-2022学年高一下学期素质拓展数学试题
广西百色市百色民族高级中学2021-2022学年高一下学期素质拓展数学试题浙江省金华十校2018-2019学年高二下学期期末调研考试数学试题(已下线)【新东方】【2021.4.27】【温州】【高二上】【高中数学】【00187】
4 . 给出下列三个命题:
①若随机事件
,
互斥,
,
发生的概率均不等于0,且分别为
,
,则实数
的取值范围为
.
②已知平面内一点
及
,若
,则点
在线段
上;
③设连续掷两次骰子得到的点数分别为
,
,令平面向量
,
,则事件“
”发生的概率为
.
其中正确命题的序号是___________ .
①若随机事件
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd95cb937145f07e18d79672734ac799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c14e12a14338fde3de8d78d5f8f3c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a7450d3eb101e9957898ed341aeaf7.png)
②已知平面内一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b171e0a9215597a4cd99cc828108398b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
③设连续掷两次骰子得到的点数分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f6c18d74381c24a7180fdf170d7ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30e59a0b8e5c3b861e80f6e099604277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70673c92e21f14bd1b27c07700e26b38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d7abf02717d6e59d8a64a65a87c412.png)
其中正确命题的序号是
您最近一年使用:0次
5 . 已知向量
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/549f99e6e10e61af2e7734c4d01ea90c.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbc9e43a2d67919325ef1172f13d18a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe987c9ca409c2e4b58aeb91e8c98ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fde7e69a8bd95c1c24c5d9f4e1364493.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/549f99e6e10e61af2e7734c4d01ea90c.png)
您最近一年使用:0次
2018-03-15更新
|
505次组卷
|
4卷引用:广西壮族自治区广西阳朔中学2018届高三第三次月考数学(文)试题
广西壮族自治区广西阳朔中学2018届高三第三次月考数学(文)试题广西壮族自治区贺州市桂梧高中2018届高三上学期第四次联考数学(文)试题广西2018届高三下学期第二次模拟数学(理)试题(已下线)6.3.3 平面向量加、减运算的坐标表示——课后作业(提升版)
6 . 若
,
,且
,
共线,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b095888c57670be0323a6143d902b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002c5922215d45679781b0c31afee517.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/dd707b69a11f8de5566f23c1a2a9ff5a.png)
您最近一年使用:0次
2020-01-04更新
|
146次组卷
|
2卷引用:广西壮族自治区玉林市2019-2020学年高三上学期11月月考数学(文)试题
名校
7 . 已知向量
,
,若
,则实数
等于_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37747a127a9c714d155988e2c454bae0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e4675d789709c4030dd0a90dd7c3cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3854a1870df3dfab871bb1b15d41cb07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2019-10-21更新
|
159次组卷
|
2卷引用:广西壮族自治区桂林市第十八中学2019-2020学年高二上学期10月月考数学试题
8 .
中,角
所对的边分别为
,向量
,
,且
,三角函数式
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea794ff95d2b1b0c6fd3bd6df926adb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52ff87cd258965d294500bebfe10a29e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb83fac351156d4447cdca7cbd07c194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e135b8211cc743ab6f892d041647de.png)
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名校
9 . 已知
为
的外心,
且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7165ad46d58e1e08712a5ff6f522939.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97fc6ef82d4aaf914f23940b6f4cf6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f11fff7edeb266016d3044cd1199eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7165ad46d58e1e08712a5ff6f522939.png)
您最近一年使用:0次
2017-11-12更新
|
412次组卷
|
2卷引用:广西桂林市第十八中学2018届高三上学期第三次月考数学(理)试题