1 . 在平面直角坐标系
中,已知点
.
(1)求以线段
为邻边的平行四边形的两条对角线的长;
(2)当
为何值时,
与
垂直;
(3)当
为何值时,
与
平行.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a2d1ca22054c044b990d50107d2c8e.png)
(1)求以线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bca6d58dbc8574a45d093583a515348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20ec3efaa6b6ff5769e8999df5714a9.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a1279c43ada7521e204660a6226b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aecd1478275e20deaff8db1f8e2fd818.png)
您最近一年使用:0次
解题方法
2 . 在直角坐标
平面内,已知点
,直线
,
为平面上的动点,过
作直线
的垂线,垂足为点
,且
.
(1)求动点
的轨迹
的方程;
(2)过点
的直线交轨迹
于
两点,交直线
于点
,已知
,试判断
是否为定值?若是,求出该定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63309dbc3612815f6dbdee23d9a10adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b556b1a9944719cf423e90f8df16c773.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53c93c1d783f44d0ec7daab2916561b.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea81cb7781a51737e7c53260915efdd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
您最近一年使用:0次
2017-03-03更新
|
328次组卷
|
2卷引用:2016-2017学年山东省烟台市高二上学期期末考试数学(文)试卷
10-11高三上·山东临沂·期中
3 . 已知O为坐标原点,向量
,
,
,点P满足
.
(Ⅰ)记函数
·
,求函数
的最小正周期;
(Ⅱ)若O,P,C三点共线,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08cea4a9397f30bfc0150f419f94aae7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5a9465aeb3c26a65a8a115deda5f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa3f3bc3801778092aabcc5a5c0f933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d19b101d4b8ae839aae5f933683b9.png)
(Ⅰ)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9de4e5fe1f8b3563beb0d3d7538c57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced60a5ddc01adbc795c22979fddc501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ba6b6ee00c4b2763cb3fa59caa69f.png)
(Ⅱ)若O,P,C三点共线,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10066bb346afb3c4f378db3f79c6a144.png)
您最近一年使用:0次
2016-11-30更新
|
895次组卷
|
4卷引用:2011届山东省临沂市高三上学期期中考试文科数学卷
(已下线)2011届山东省临沂市高三上学期期中考试文科数学卷(已下线)2012届山东省聊城莘县实验高中高三上学期期中考试数学山东省临沂市罗庄区2016-2017学年高一下学期期末考试数学(理)试题山东省济南市历城区修文外国语学校2019-2020学年高二9月阶段检测(保送)数学试题
名校
4 . 在
中,角
的对边分别为
,已知
,向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed18dcae08fdda66546ae2998d00e44a.png)
,且
∥
.
(1)求角
的大小;
(2)若
成等差数列,求边
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.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/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed18dcae08fdda66546ae2998d00e44a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad64a36462a333b4a05d9b479ebec20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/750402eef953e16a0bbfb7d471562aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074052868068e1d6119a01685888aff8.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665a56e52764d38e982fa47e830da993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-03更新
|
546次组卷
|
6卷引用:山东省济南外国语学校2018届高三第一学期阶段考试数学(文)试题
山东省济南外国语学校2018届高三第一学期阶段考试数学(文)试题2015届河南省商丘市高三第一次模拟考试文科数学试卷2016届湖北武汉华中师大第一附中高三上期中考试文科数学试卷2016-2017年河南漯河高级中学高二理12月月考数学试卷(已下线)2018年12月30日 《每日一题》(理数)人教必修5+选修2-1(高二上期末复习)-每周一测(已下线)2019年12月29日《每日一题》必修5+选修2-1理数-每周一测
13-14高一下·北京·期中
5 . 已知向量
,
.
(1)若
,求实数
的值;
(2)若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
为直角三角形,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465d290ceec141f2ac37f292eb3bd761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7070083a494b0f8edb616757717563f4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a911aa5e0beb6dd366ff6bcc6e148bf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
11-12高三下·山东济南·阶段练习
解题方法
6 . 设平面向量
,其中
.
(I)记“使得
成立的
”为事件
,求事件
发生的概率;
(II)记“使得
成立的
”为事件
,求事件
发生的概率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fd3222b15a45562bffc7f9089fd1d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7171b2a10d55c0569e74025a29670fb.png)
(I)记“使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(II)记“使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38cf968a847b240e3bd32021a2c4f282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
11-12高三上·山东济宁·阶段练习
7 . 设锐角
的三内角
、
、
的对边分别为
、
、
,向量
,
,且
与
共线.
(1)求角
的大小;
(2)若
,
,且
的面积小于
,求角
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa566a433a94dc91e52db8e988d46d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4bd920d0151517b0d1f32788f5c10e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9856ad2a8dd1b673ec2cfa9ee0a1eaff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184c6736108865aa9ba3680f3d50526a.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3632b83114bfe307aa42f794c9efdae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
11-12高三上·山东济南·期末
8 . 已知向量
,
,若
,则实数
的值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cd797f88a5fdaf827e3978d5883d281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b04816f160c7786f717774b583a8a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5169c7deb5adc27061b7c3c28c67c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
10-11高三上·西藏拉萨·阶段练习
名校
解题方法
9 . 平面向量
已知
∥
,
,求
、
及
夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79e0a3abd205100fad5369eda67e377.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/6a36228810d0c2f6c6e53584c1ac176b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3820e4c51269ba2435235d61a6310645.png)
您最近一年使用:0次
2016-11-30更新
|
425次组卷
|
3卷引用:山东省济南第一中学2016-2017学年高一下学期期末考试数学试题
山东省济南第一中学2016-2017学年高一下学期期末考试数学试题(已下线)2011届西藏拉萨中学高三上学期第四次月考理科数学卷新疆巴音郭楞州和硕县高级中学2021-2022学年高一下学期第一次月考数学试题
9-10高一下·吉林长春·阶段练习
10 . 已知
,
,
,
,且
∥
,则
= .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037c70a2b8a70b0c350c6d98a5aeac31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdcf8a317ccc87a1bf8e17852fddbe29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdab1e32f1b06e06bbb511639d850fbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/688035fd6002f7ff854b4693044a23f5.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/bd0d45f92a664de19019f5342147af21.png)
您最近一年使用:0次
2016-11-30更新
|
1119次组卷
|
4卷引用:2013-2014学年山东省济南一中高二下学期期中质量检测试卷
(已下线)2013-2014学年山东省济南一中高二下学期期中质量检测试卷(已下线)吉林省长春外国语学校2009---2010学年第二学期高一第二次月考数学试题河南省项城三高2017-2018学年高一下学期第二次段考数学(B卷)试题吉林省吉林市第五十五中学2018-2019学年高一下学期期末数学试题