名校
1 . n个有次序的实数
,
,…,
所组成的有序数组
称为一个n维向量,其中
称为该向量的第i个分量.特别地,对一个n维向量
,若
,称
为n维信号向量.设
,
,则
和
的内积定义为
,且
.
(1)直接写出4个两两垂直的4维信号向量;
(2)证明:不存在10个两两垂直的10维信号向量;
(3)已知k个两两垂直的2024维信号向量
,
,…,
满足它们的前m个分量都是相同的,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086eb439f6a1578fdba904825340772d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa87d9662032c4b53e41634f3424b0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d5cd21ff3c760e7ec3130f5bfa8c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94fcc44ac04f54d5fcc1a6154b8b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d5cd21ff3c760e7ec3130f5bfa8c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a414d372b680499f1c8ca1a7ae5f4d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51cfee5ec6cb12cb32e04de5c387a2c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e45b1c120de76ab330bf5e9cb98cce.png)
(1)直接写出4个两两垂直的4维信号向量;
(2)证明:不存在10个两两垂直的10维信号向量;
(3)已知k个两两垂直的2024维信号向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9541e55ef7917c4d5eec7e5062a6f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de4fe4539ececcc2452bea1046c7148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8c3f353a2ff4a61f8b81a3314c09e0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf2182d0dad848ccc76944d976befbf2.png)
您最近一年使用:0次
2019高三·全国·专题练习
名校
解题方法
2 . 如图,在三棱锥P-ABC中,
,D是BC的中点,PO⊥平面ABC,垂足O落在线段AD上,已知
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/23/316c63cc-2ce9-41ee-b348-086a0691951a.png?resizew=215)
(1)求证:AP⊥BC;
(2)若点M是线段AP是一点,且
.试证明平面AMC⊥平面BMC.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03bd70875715c32418d4a8a4f6c37c46.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/23/316c63cc-2ce9-41ee-b348-086a0691951a.png?resizew=215)
(1)求证:AP⊥BC;
(2)若点M是线段AP是一点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3432d20e661779ddcefda76afcc2ac.png)
您最近一年使用:0次
2022-09-21更新
|
1148次组卷
|
10卷引用:北师大版(2019) 选修第一册 突围者 第三章 第四节 课时2 用向量方法讨论立体几何中的位置关系
北师大版(2019) 选修第一册 突围者 第三章 第四节 课时2 用向量方法讨论立体几何中的位置关系2023版 北师大版(2019) 选修第一册 突围者 第三章 第四节 课时2 用向量方法讨论立体几何中的位置关系(已下线)专题1.5 空间向量的应用【十大题型】-2023-2024学年高二数学举一反三系列(人教A版2019选择性必修第一册)1.4.1.3 空间中直线、平面的垂直练习(已下线)专题8.6 空间向量及空间位置关系(讲)【理】-《2020年高考一轮复习讲练测》(已下线)专题8.6 空间向量及其运算和空间位置关系(精讲)--2021年高考数学(理)一轮复习讲练测(已下线)9.5 空间向量与立体几何河南省焦作市博爱县第一中学2023-2024学年高三上学期定位考试数学试题河南省许昌高级中学2022-2023学年高三上学期定位考试数学试题(已下线)考点10 空间向量的应用 2024届高考数学考点总动员【练】
名校
3 . 如图,
是正方形,
平面
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8be264322127742b5f1b254acc5db0b.png)
![](https://img.xkw.com/dksih/QBM/2021/11/2/2842768438591488/2844281671016448/STEM/df3d17bb079a4e6d94ab2d81cac2b0e0.png?resizew=257)
(1)求证:
;
(2)求二面角
的余弦值;
(3)设点
是线段
上一个动点,试确定点
的位置,使得
平面
,证明你的结论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d2d217e9bcd059908f117dfc4d4259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15cd53fe7b73365723ce4789bb259d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8be264322127742b5f1b254acc5db0b.png)
![](https://img.xkw.com/dksih/QBM/2021/11/2/2842768438591488/2844281671016448/STEM/df3d17bb079a4e6d94ab2d81cac2b0e0.png?resizew=257)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589ddae20626f9aaac616d2a3b5d95bd.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f717b7d4d0978eec7330afec554c078.png)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac480d8d9d7821b62a603cf5cfda236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
您最近一年使用:0次
名校
4 . 如图,在三棱柱
中,
边长为
的正方形,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a9d424ec80f42e2f7c466de0f7bf4a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/6e486824-5a98-4f04-a0ee-d7efeec52619.png?resizew=154)
(1)求证:
平面
;
(2)求二面角
的余弦值;
(3)证明:在线段
上存在点
,使得
,并求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a9d424ec80f42e2f7c466de0f7bf4a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/6e486824-5a98-4f04-a0ee-d7efeec52619.png?resizew=154)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95183b555d54b3a09ac20e9dcacb02ec.png)
(3)证明:在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84a436704964dc76f16c2c23665ab3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c04c68f1ef1e37534b5bbc7a1f592ef7.png)
您最近一年使用:0次
解题方法
5 . 如图:已知四棱柱
的底面ABCD是菱形,
=
,且
.
表示
,并求
;
(2)求证:
;
(3)试判断直线
与平面
是否垂直,若垂直,给出证明;若不垂直,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d2b11373ab38e88e0389c575595adec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cf78256450d35903dcb0d71008e76f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7425e954dff22e28ee64901f05b3fc7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adb96420ac535f564aee04a049c1329f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/954b037f02fd77a8b5549df819dbabac.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bda52b48b75bf5409781554205c15d1.png)
(3)试判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73845d4d663b3de0b281611fe2c762fe.png)
您最近一年使用:0次
解题方法
6 . 如图.已知平行六面体
的底面是菱形,
,
.
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4660d993eda4d53b99bbe06a20344462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/920a7dec798f1fd44f5830504ab5bdec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a0e00113872f921116b6c0c3177d0f.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239198e40085b7dcffbe747c9c265a05.png)
您最近一年使用:0次
解题方法
7 . 如图所示,在棱长均相等的平行六面体
中
分别为线段
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/55444ffb-64db-4ee4-8765-a3692606418e.png?resizew=168)
(1)设
,请以向量
表示
;
(2)求证:平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d1641ee630d23b48c7d179d09b40d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2695585c5bccde7f9b49d92ca0d3916.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/55444ffb-64db-4ee4-8765-a3692606418e.png?resizew=168)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dfb9769a14ebf5cbc5fa0c06ce96435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae54940f33b8714da5fe3b7546f8b3dc.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0fbd88fdb064072eedd136e9cb41ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
您最近一年使用:0次
名校
解题方法
8 . 如图所示,已知空间四边形
的每条边和对角线长都等于1,点
,
,
分别是
的中点.
;
(2)求证:
;
(3)求异面直线
和
所成角的余弦值.
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868a68302dfab497e705816c2b1c9708.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643493af30a14550f145f5394efed45f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb023313112cd8a6068d013fdcc9a193.png)
(3)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,在平行六面体
中,底面
是边长为1的正方形,侧棱
的长为2,且
,在线段
分别取
四点且
.求:
;
(2)
的长;
(3)直线
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42668064fa70a3712d6c023a92dddb28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/737d0f556d78f7c3f7302a69f65c0766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b2792b888960801f908a88d9f627ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13b3a57e935106115f2a405f8948e04c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e4b1eb1fa15a52af46c0d9610f534c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c92b5799d12ea37de46d7c942ce7a9.png)
(3)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b435d7fc33860ae191f9111d880b40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
名校
解题方法
10 . 如图,在平行六面体
中,以顶点A为端点的三条棱长都是1,且它们彼此的夹角都是
,M为
与
的交点.若
.
(1)求
;
(2)求证:直线
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dfb9769a14ebf5cbc5fa0c06ce96435.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/7/ecedd36e-65e0-44d0-8a80-025431568976.png?resizew=178)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1980afc16db40189b8dcc545602c63d.png)
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d26d8a9d64ad3c8cba28840b41ed7837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bf9ef324f1289e205e29fed105c38e.png)
您最近一年使用:0次
2023-11-15更新
|
206次组卷
|
3卷引用:广东省广州市六十五中2023-2024学年高二上学期期中数学试题