名校
1 . 如图,在正三棱柱
中,
为空间一动点,若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b68c8e30370f61d3e807e51c55f3258.png)
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.存在![]() ![]() |
D.存在![]() ![]() ![]() ![]() |
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4卷引用:重庆市第十一中学校2023-2024学年高三第九次质量检测数学试题
重庆市第十一中学校2023-2024学年高三第九次质量检测数学试题山西省长治市2023-2024学年高二下学期3月质量检测数学试题(已下线)模块3 第8套 复盘卷(已下线)专题7 立体几何综合问题【讲】
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2 . 在空间直角坐标系中,已知向量
,点
,点
.若直线l经过点
,且以
为方向方量,P是直线l上的任意一点,O为坐标原点.
(1)求证:
;
(2)当
,且
时,求点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba436b158708e7325885fea7106e92b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c832b5312310a88bef6596496df8daa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bfcaf2a345411411cf94422703e9269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d71d1e5f816103a951d6ebf10af047b.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f0582d9908f92f14cb02a6ccaf0eae.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1965236b071589fcdd33364bb0a92d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db835cce1e68a580450593b3905e5d8.png)
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3 . 已知三棱锥
,空间内一点
满足
,则三棱锥
与
的体积之比为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9de695c560aeff95fdde7d0b4476ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d90f940f5693b22ddf2e7c761887d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
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2024-04-07更新
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4卷引用:山东省齐鲁名校联盟2023-2024学年高三第七次联考数学试题
4 . 四棱柱
的六个面都是平行四边形,点
在对角线
上,且
,点
在对角线
上,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/4d6704cd-d846-48a0-8dfc-3b921517bb0e.png?resizew=185)
(1)设向量
,
,
,用
、
、
表示向量
、
;
(2)求证:
、
、
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e663220a66eff19da6a71e46b397db2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7edc594bc197a4f8ae571df31d22b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae4af331bca6587521e6dd4212f78d1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/4d6704cd-d846-48a0-8dfc-3b921517bb0e.png?resizew=185)
(1)设向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7b9d8a08fc52c31cc1a7f527d18b55c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184359fe3cadc363cf4ebe586c2b3db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b0ff98fe5e0a913ebecda552acc6f6.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/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7ef300fccd1d15cfd5556f9d742e12f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53766326ff2736199a9318970f1603c.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
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2024-02-27更新
|
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7卷引用:3.1 空间向量及其运算
(已下线)3.1 空间向量及其运算(已下线)高二上学期第一次月考解答题压轴题50题专练-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)(已下线)专题01 空间向量与空间位置关系【考题猜想】-2023-2024学年高二数学上学期期中考点大串讲(人教A版2019选择性必修第一册) 四川省泸县第五中学2023-2024学年高二上学期第一次月考试数学试题(已下线)专题 01 空间基底及综合应用(3)(已下线)专题 01 空间基底及综合应用(4)(已下线)3.2 空间向量基本定理(五大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
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解题方法
5 . 如图,在正三棱柱
中,
,
,
是棱
的中点,点N在棱
上,且
,点
在线段
上,且C,M,P,
四点共面.
(1)设
,求
的值;
(2)若Q为线段
的中点,求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58eb7e7cce61e556ad46e0477e34a5f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd94d3c3765c52e2d6375f1959686430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/4ecd3c4c-1f78-4c8f-9522-3e16832c068a.png?resizew=167)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/468ee8a8a8a9a546a180b7522a0e18e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若Q为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6655c413f509068d30b165f9d92bdba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7774979ac57c0965e3af523607b14bb8.png)
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2024-01-13更新
|
369次组卷
|
2卷引用:山西省大同市2024届高三上学期冬季教学质量检测数学试题
6 . 如图,在三棱锥
中,
,
,
,
,
为
的中点,
为
的中点,
为
的重心,
与
相交于点
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/1ed72a04-ef44-42b9-9807-1bd38151a2b1.png?resizew=155)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e713f0ba80e87438cf6273fb00cb81a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4873cf61c0893f05a0fa4cfd16f61bbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f3bb1ec8dc337d5dfdb1240842d938b.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/1ed72a04-ef44-42b9-9807-1bd38151a2b1.png?resizew=155)
A.![]() | B.1 | C.![]() | D.![]() |
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2卷引用:河南省创新发展联盟2023-2024学年高二上学期第四次联考(12月)数学试题
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7 . 下列命题正确的是( )
A.若直线![]() ![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.若空间向量![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.若向量![]() ![]() ![]() ![]() |
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2023-12-27更新
|
889次组卷
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2卷引用:辽宁省大连市第十二中学2023-2024学年高二上学期12月学情反馈数学试题
解题方法
8 . 如图,在正三棱柱
中,D为
的中点,空间一点P满足
,其中
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/96c9d9b6-565f-4c87-8860-7942d1f71dcc.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ed300d54a8b0ced9b792ecc579ca21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77d737af169c5cb7c83e3008e38324e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/96c9d9b6-565f-4c87-8860-7942d1f71dcc.png?resizew=160)
A.当![]() ![]() |
B.当![]() |
C.当![]() |
D.当点P到直线![]() ![]() |
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2023-12-25更新
|
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3卷引用:山西省吕梁市孝义市2023-2024学年高二上学期12月月考数学试题
山西省吕梁市孝义市2023-2024学年高二上学期12月月考数学试题山西省晋中市灵石县第一中学校2023-2024学年高二上学期12月月考数学试题(已下线)第三章 空间轨迹问题 专题五 微点1 翻折、旋转问题中的轨迹问题【培优版】
9 . 已知向量
,
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6aaeb12ee1afb1a4985dc68534e170d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334517b7956194a79fadaabac15f4f77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd79264e130de60a100b001b5d45585c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5113986d9507fc5015e71989831c128b.png)
A.3 | B.![]() | C.9 | D.![]() |
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10 . 下列说法正确的是( )
A.对于空间任意两个非零向量![]() ![]() |
B.若向量![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() |
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