名校
1 . 已知平面向量
,
,
,则下列说法错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf470ed1e71f23d870825b08a2e338b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ebc70d30d5a9db7a0b7ef61348ac61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4545e5b893e3d207a2134cf973406b.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
解题方法
2 . 已知
是坐标原点,过抛物线
的焦点
的直线
与抛物线
交于
两点,其中
在第一象限,若
,点
在抛物线
上,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f8f333303816ff66e3aa44bcf97268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5fb95c0dbba2ce77a7dcc42fa06e058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.抛物线![]() ![]() | B.![]() |
C.直线![]() ![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 抛物线
:
的焦点为
,直线
,
过
分别交抛物线
于点
,
,
,
,且直线
,
交
轴于
,
,其中
,则
点坐标为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e258dc5c8b4ea30bca80a56098065402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
名校
解题方法
4 . 已知向量
,
,若
与
共线且反向,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/750079fe7868fd50c1958bdc4972248d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92ba5e6df3bdc570aea6bcc93526affb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7a1df960feef63dec4790d63f52279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.4 | B.2 | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-12更新
|
745次组卷
|
4卷引用:河南省信阳市高级中学2023-2024学年高三下学期三模数学试题(B)
解题方法
5 . 已知向量
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324ae9aabe9b5d2800807da07b3d0268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc89084d428d76671f0ffd27d328ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460e5ba67828c57daf2edb497fb52e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.3 | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
6 . 已知向量
,若
反向共线,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eea1ac0f4540dd2bb71a2efb76bd69a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665cac62260d39aafa6a391d95afa38b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.3 | C.3或![]() | D.![]() |
您最近一年使用:0次
2024-03-22更新
|
1237次组卷
|
2卷引用:湘豫名校联考2024年2月高三第一次模拟考试数学试题
名校
7 . 已知
为坐标原点,
,
,
,向量
,动点
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bad299e2782c072d27e1c54422cc8fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
,写出一个
,使得有且只有一个点
同时满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9bece414af7ecb2d796dc8a6f549e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e62a44b8712ce4483b8710cda0dc1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a291e0d0e2f620a15826a1aa3c04bc37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e77c9666750eb18917c43a03232d7b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bad299e2782c072d27e1c54422cc8fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e163480714acc9dae5005cac65d217d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11332380fd5a9d83ca2825e7e0d5ef66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
2024-02-27更新
|
1273次组卷
|
2卷引用:河南省信阳市新县高级中学2024届高三考前第七次适应性考试数学试题
名校
解题方法
8 .
的三个内角A,B,C所对边的长分别为a,b,c,设向量
,
,且
.
(1)求角C的大小;
(2)若
,求
周长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d38341fda675a002cc2773ddf3aa77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76a8c95c6bcaf1a539f1d367d39d5e2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0944c482522b1b54e35f25affe635166.png)
(1)求角C的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023·全国·模拟预测
名校
解题方法
9 . 已知
为等比数列,向量
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c6452aba920cb9c04112b3c80a8f8ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826aa248dda88634b7a0e76b57028687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
A.4 | B.2 | C.8 | D.6 |
您最近一年使用:0次
2024-03-02更新
|
667次组卷
|
6卷引用:河南省南阳市第一中学校2024届高三上学期期末模拟数学试题
河南省南阳市第一中学校2024届高三上学期期末模拟数学试题(已下线)2024年普通高等学校招生全国统一考试·信息卷理科数学(一)(已下线)2024年普通高等学校招生全国统一考试数学领航卷(八)江苏省镇江市丹阳高级中学2024届高三下学期2月阶段检测数学试题(已下线)黄金卷04辽宁省沈阳市第十中学2023-2024学年高二下学期第一次月考(4月)数学试卷
解题方法
10 . 已知向量
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f8426f62ced414e094ebfc5d6b0074f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/702006afcad126d8bc90555c7520c079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076559f08d17fb25e82886e791719e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.1 | C.![]() | D.![]() |
您最近一年使用:0次