名校
1 . 已知
(a,
)是直线l的方向向量,
是平面
的法向量,如果
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dfc3b155435130b8c1d0e66484a4727.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8752ee706196b497099ddd8342ef3e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a3849dacb9cd91d905551d858ffdd5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c656aab9776eff87154d726241066459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e380108ba2cf04e68a5a9393d2b921c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dfc3b155435130b8c1d0e66484a4727.png)
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2 . 如图,在空间直角坐标系
中,正四棱柱
的底面边长为4,高为2,O为上底面中心,E,F,G分别为棱
、
、
的中点.若平面
与平面
的交线为l,则l的方向向量可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76ee17afa983fa795545b5568b80089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d42170c7d4249f6b390823606c18c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0f9bc9123d19a09babe8609cf12327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80cc8e81f6bd1e28869e0a46e1732320.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/2/d70f2417-2189-44bb-80e6-0a98b9c03880.png?resizew=197)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知平面
和平面
的夹角为
,
,已知A,B两点在棱上,直线
,
分别在这个二面角的两个半平面内,且都垂直于
.已知
,
,则
的长度为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/b9557223-2fbf-4e9d-9b76-afdf84a76288.png?resizew=162)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b707f5ee4fbb2e637c65fbc6d8ed03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aabdde5c06a238f7623344f13755fa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/b9557223-2fbf-4e9d-9b76-afdf84a76288.png?resizew=162)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
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4 . 在四面体
中,M点在线段
上,且
,G是
的重心,已知
,
,
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe72d1b634f1e89d8699e605e7d46af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/420ad6159fc091d6a5ffddf0676d2662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c2e7e9fd8519fd1c293cc577408263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a40f8ef7e3af00c41f85a20578afdb57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da53a4722fb7b67eeb4145b491c456ff.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-02-28更新
|
229次组卷
|
3卷引用:湖北省荆门市2023-2024学年高二上学期1月期末学业水平检测数学试题
湖北省荆门市2023-2024学年高二上学期1月期末学业水平检测数学试题江苏省常州市联盟学校2023-2024学年高二下学期3月阶段调研数学试题(已下线)第七章 应用空间向量解立体几何问题拓展 专题一 空间向量基底法 微点4 空间向量基底法(四)【基础版】
5 . 如图,四棱锥
中,
为等腰直角三角形,四边形
为菱形,
,
,E,F分别为CD,PD的中点,平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/ffd3d4c6-eb41-4062-b7d8-e3ef22793ba1.png?resizew=149)
(1)求证:
;
(2)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f14f698605a196cf83ccba6a601d0e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05740f0c6071846227dc0ec177ad15e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/ffd3d4c6-eb41-4062-b7d8-e3ef22793ba1.png?resizew=149)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab00e0cff0876c4183a47f1272cf9928.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
6 . 如图,三棱锥O-ABC中,M是BC的中点,
,设
用
表示向量
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf61a6de70565fbf32abe3c53c79312.png)
_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6e979e750bebbabd2a5fc706de928f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c515266d44d063e3d18da3bc556f293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e12e95f703ad30ab9a3d38376830989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2490b8c788fcdec42cb81fae32f9d0e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf61a6de70565fbf32abe3c53c79312.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/cd013d69-34b6-4b0f-8bc3-6f0b486d43ce.png?resizew=146)
您最近一年使用:0次
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7 . 对于任意向量
定义运算:
.若向量
,向量
为单位向量,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf9fc45e6dc0579eda8f3f0d63a09c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb27737e8a85ed60579509b5ff53a32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db35dbee504e3e66bfd03c24e4b7322.png)
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8 . 已知向量
,
,若
与
共线,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd989ddfbed4a6aa18ea57734522153.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c622d5a6c35c6f24f17a9260dad2293e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e60d6ecd3645765d2a810be7805606.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/bfd989ddfbed4a6aa18ea57734522153.png)
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9 . 向量
在向量
方向上的投影向量的模为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b672cad6176e0fa26c169de3ef4b6b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd42e9c6b31373438f4d26dabe3378e3.png)
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10 . 下列说法正确的是( )
A.若有空间非零向量![]() ![]() ![]() ![]() |
B.A,B,C三点不共线,空间中任意点O,若![]() |
C.![]() ![]() ![]() ![]() |
D.若![]() |
您最近一年使用:0次
2024-02-05更新
|
270次组卷
|
2卷引用:湖北省荆州市荆州中学2023-2024学年高二上学期期末考试数学试题