解题方法
1 . 如图, 已知四棱柱ABCD-A1B1C1D1的底面ABCD是正方形,CC1=3,CD=2,且∠C1CB=∠C1CD=60°.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/d32d9e8f-c04d-4667-9481-3ee55b9854f3.png?resizew=232)
(1)求证:BD⊥CA1;
(2)求CA1的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/d32d9e8f-c04d-4667-9481-3ee55b9854f3.png?resizew=232)
(1)求证:BD⊥CA1;
(2)求CA1的长.
您最近一年使用:0次
2 . 如图,在平行六面体
中,
,
,
,
,
,
,
与
相交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/5221e899-1121-4c80-b14a-f8f7d31b4725.png?resizew=260)
(1)求
;
(2)求
;
(3)求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf90bac174f02c4552e56df4d910bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/603a63e8e8f9a50d52980bd7e69b7db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea77ee9aae8a89ab14e5cd8481b3747a.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/5221e899-1121-4c80-b14a-f8f7d31b4725.png?resizew=260)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8bad16b7cdf8c638cd324f5be5d834f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd2cdf0ac829b0f5c82fc3fe5d12142.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4195334905e2f190f958dbf5951456f8.png)
您最近一年使用:0次
3 . 如图,在平行六面体
中,
,
,设向量
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/6/50ad390b-c4e8-47e3-8f62-8454ad234238.png?resizew=192)
(1)用
、
、
表示向量
,并求
;
(2)证明:直线
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cead0e8eadfdcefa334953e88864f424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/792f618eca1484e7f056025984ce4a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e984585ddf28c039219afcebf229de7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8780f5b68f8907a57c1c2f96233a78c5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/6/50ad390b-c4e8-47e3-8f62-8454ad234238.png?resizew=192)
(1)用
![](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/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a38dfb3f3d83fa111eb89009789e88b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f70d067d9f0d3aefd53fbd95d4b8b7ee.png)
(2)证明: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
名校
4 . 如图,正四面体
(所有棱长均相等)的棱长为1,E,F,G,H分别是正四面体
中各棱的中点,设
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/44a29de1-1b92-40aa-b4b9-9588dce23e70.png?resizew=169)
(1)用
,
,
表示
,并求
的长;
(2)求
与
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc03a3ba496faee748a8d63e5d4fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381985fdee6a1ac3ad4a73f5f653b84c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/44a29de1-1b92-40aa-b4b9-9588dce23e70.png?resizew=169)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc03a3ba496faee748a8d63e5d4fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381985fdee6a1ac3ad4a73f5f653b84c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae54940f33b8714da5fe3b7546f8b3dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae54940f33b8714da5fe3b7546f8b3dc.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae54940f33b8714da5fe3b7546f8b3dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2064dcc070d53a2f774364f455631df3.png)
您最近一年使用:0次
2022-11-03更新
|
380次组卷
|
6卷引用:厦门市集美区乐安中学2022-2023学年高二上学期期中考试数学试题
厦门市集美区乐安中学2022-2023学年高二上学期期中考试数学试题湖北省仙桃市田家炳实验高级中学2022-2023学年高二上学期期中数学试题(已下线)1.2 空间向量基本定理 精练(5大题型)-【题型分类归纳】2023-2024学年高二数学同步讲与练(人教A版2019选择性必修第一册)(已下线)专题1.3 空间向量基本定理【八大题型】-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)(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)福建省厦门市厦门大学附属科技中学2023-2024学年高二上学期10月月考数学试题
名校
5 . 已知空间中三点
、
、
.
(1)若
、
、
三点共线,求
的值;
(2)若
且
、
的夹角是钝角,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6cd005edd9bd68f05141ea119dfc734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710e75f4b10a429ff0072874a254f0f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb03041f5ad6263f28c1c303c3552a25.png)
(1)若
![](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/8fd1f0ace9ca0b79929e73af6c201c2e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd09fb9482124fd35f19b86894648f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
6 . 如图,在平行六面体
中,
,
,
,
,
,且点F为
与
的交点,点E在线段
上,有
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/85cd699e-8fcd-4941-aaff-440dc414f750.png?resizew=203)
(1)求
的长;
(2)将
用基向量
来表示,设
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa5600c2061f6e12991bf271a4a3ab51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b735c72cfb59b24ec9c4aae288942252.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e0f0ccc8492a0ccf1eee24867060643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/020ebe1219437129358b986eb9e70bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c92b5799d12ea37de46d7c942ce7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a9e0317741e5248efae26481ff7072.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/85cd699e-8fcd-4941-aaff-440dc414f750.png?resizew=203)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c92b5799d12ea37de46d7c942ce7a9.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae54940f33b8714da5fe3b7546f8b3dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54e7ce34220e572283da3c4b7055ede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02c93e70dcbdedf0a2d7a4effc517263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1433c8103033c67232f2f9ae189608d.png)
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2022-10-28更新
|
317次组卷
|
3卷引用:四川省绵阳市开元中学2021-2022学年高二下学期月考理科数学试题
名校
解题方法
7 . 如图,已知平行六面体
中,底面
是边长为2的正方形,
,
,设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32892bd69becbeaf4c18f0874e981fbe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/6a114a04-0e09-4c99-97c4-20118d055be8.png?resizew=248)
(1)用
表示
,并求
;
(2)求AC1与BD所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd694ad3a4733c7c84aaa7946aeea4de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c47b3e7435856bedf495e1e859be631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6ed75fc5022a5d53bf64ec481dfe73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32892bd69becbeaf4c18f0874e981fbe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/6a114a04-0e09-4c99-97c4-20118d055be8.png?resizew=248)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d189ba56ed46476376bb15266540cfef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4feafb6ff8a0f0ea0fe6d3b55eb499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db065ca9e06774313be2ba4a6e39280.png)
(2)求AC1与BD所成角的大小.
您最近一年使用:0次
2022-10-28更新
|
468次组卷
|
3卷引用:山西省长治市第二中学校2022-2023学年高二上学期第一次月考数学试题
解题方法
8 . 平行六面体
中,以顶点A为端点的三条棱长都为1,且两两夹角为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/3b5aa3f8-6f97-4e3a-82c9-d539c606fbf5.png?resizew=183)
(1)求线段
的长;
(2)若
,判断
能否构成空间的一组基底,若能,用此基底表示向量
;若不能,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7ddbb49c644bf06ccbad885ba2c84a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b030ed8bba39f5bb0625c48ccf4c55fa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/3b5aa3f8-6f97-4e3a-82c9-d539c606fbf5.png?resizew=183)
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b677c724bb0e61b8dd26ac6acf367eec.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81bba1e3328371dfa697e8b8db19d55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac50401600282cf78ded931be0a94e79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7aac5eb01b064a36522340097063a6.png)
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2022-10-25更新
|
350次组卷
|
6卷引用:贵州省贵阳市“三新”改革联盟校2022-2023学年高二上学期联考试题(五)数学试题
贵州省贵阳市“三新”改革联盟校2022-2023学年高二上学期联考试题(五)数学试题(已下线)6.2.1空间向量基本定理(2)(已下线)高二上学期第一次月考十八大题型归纳(拔尖篇)(1)(已下线)专题02 空间向量基本定理及其坐标表示压轴题(5类题型+过关检测)-【常考压轴题】2023-2024学年高二数学上学期压轴题攻略(人教A版2019选择性必修第一册)(已下线)专题02空间向量基本定理(2个知识点3种题型)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(人教A版2019选修第一册)四川省雅安市天立学校2022-2023学年高二下学期期中教学质量测试数学(理)试题
名校
解题方法
9 . 如图,平行六面体
中,
,
.
![](https://img.xkw.com/dksih/QBM/2022/10/22/3093099676884992/3095038650040320/STEM/f0f526a33f3e4e3ebb9674e1b3cf0471.png?resizew=179)
(1)求对角线
的长度;
(2)求异面直线
与
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bbb96c9464cf1bfceba6e11c7909dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ab628c84ef2a2c7fc5920b6379ff1b.png)
![](https://img.xkw.com/dksih/QBM/2022/10/22/3093099676884992/3095038650040320/STEM/f0f526a33f3e4e3ebb9674e1b3cf0471.png?resizew=179)
(1)求对角线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1705916cfcc664e452ce95e2b99efdb1.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1705916cfcc664e452ce95e2b99efdb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f73038249a611568193c0bcc286fd7.png)
您最近一年使用:0次
解题方法
10 . 已知二面角
为
,A,B是棱l上的两点,AC,BD分别在半平面
内,
,且
,设:
.
![](https://img.xkw.com/dksih/QBM/2022/10/21/3092288579117056/3093033655230464/STEM/5e9f75a3fedb47d98fb84bcb3919adba.png?resizew=179)
(1)试用
表示
,并求线段CD的长;
(2)求:异面直线CD与BA所夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ae7ffcffdc546f921b1cab02d629ce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7435836899f6cd9fd01d84568b02239e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/775420da1988d2bcb0e05a2cfd385db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7036f26e08cb8354b9c2c9dcca872c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c97661b6b212ecede3a0a26441e19d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/672e0559698e2c92a22ab1930eaa0e3d.png)
![](https://img.xkw.com/dksih/QBM/2022/10/21/3092288579117056/3093033655230464/STEM/5e9f75a3fedb47d98fb84bcb3919adba.png?resizew=179)
(1)试用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e2b694fa1584587e4f1ba3bbc26eae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a1a69d7460d12d4facd43e0d941190.png)
(2)求:异面直线CD与BA所夹角的余弦值.
您最近一年使用:0次