1 . “四边形是平行四边形”是“四边形是菱形”的( )
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
名校
2 . 若
是空间的一个基底,则下列向量中可以和
,
构成空间一个基底的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed18a92338c7578c18a5ba3a2ae1ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31b07a2081bfaaf77c0062193ab173e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc9b91fb8d355f0aa521e0e45a63407.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
3 . 已知空间三点
,
,
,则
与
的夹角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6dcd362a44588747e88b206e7c5ca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4caba22130af21cbde75bd92ba2aea8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7caeeea2761360cf6ab346e7259b3fd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbaeae7045ad94158cdf5ae97073bc17.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
4 . 椭圆
的焦点在
轴上,长轴长是短轴长的两倍,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12d6977d77fef25921ecd3da10cbc43c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.2 | D.4 |
您最近一年使用:0次
名校
解题方法
5 . 如图,在空间直角坐标系
中,四棱柱
为长方体,
,点
为
的中点,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd407cdb6c758cdbe7e7216544f85b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce34c05c1445e027e9fc009907046e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c8b9d5680c06f9e28c311d67cfadd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923189afc198d153c79059a827f63c87.png)
![](https://img.xkw.com/dksih/QBM/2024/3/28/3463332106461184/3464077086294016/STEM/502a38b4235b41deb5e06261ecf054f3.png?resizew=168)
您最近一年使用:0次
解题方法
6 . 设
,
;
,则
是
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ba6f3a86695ae26887756487393ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a173784888adf2946382fa093ba53a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f2509f75c7d097cbf3e98a797ae1c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
名校
7 . 在四面体
中,
为棱
的中点,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/9407e8ac167778e90f2f147d6e80635a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-29更新
|
235次组卷
|
2卷引用:河南省部分学校2023-2024学年高二下学期阶段性测试(三)数学试卷
名校
解题方法
8 . 在正方体
中,E为BD的中点,则直线
与
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f1158eaa2e338f564eb18de5bef1d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
A.0 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-27更新
|
612次组卷
|
3卷引用:河南省郑州市宇华实验学校2024届高三下学期5月月考数学试题
9 . 设抛物线
的焦点为
,已知点
,
,
,
都在抛物线上,则
四点中与焦点
距离最小的点是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d5ad148899b68076f540fc0d2511f0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423888cb3315b7026a0af7b03632e726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0294360d4b91a0378bef60880961cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17079d92c29890e22a602c709d30ce6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd6bee2e70e3cc69c302fd05c3b64e7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48593b2bdb51550ec0a2b9d5893d36fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 已知直线
的方向向量是
,平面
的一个法向量是
,则
与
的位置关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/677abdde8bb2c6cef73cedf32aca9860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6adf3c6f8d7355ed3ab4b19ce269c4d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2024-03-12更新
|
806次组卷
|
2卷引用:河南省漯河市高级中学2024届高三下学期3月检测数学试题(一)