如图,二面角
的大小为
,四边形
与
均为正方形,
,
,记
.
(1)请用
表示
,并求
;
(2)求异面直线
与
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e9d395e5501c87fec93dee44d24027.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e683b52b8ce8e8a15be7680f11b8b914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9698abe469047f6ffbcbe1c816b97ef4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/15/1553d8d6-d4df-4950-80f8-11e332d2cce5.png?resizew=195)
(1)请用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e12e95f703ad30ab9a3d38376830989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bad299e2782c072d27e1c54422cc8fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7592e81d3652ff9944b65a566aa24bef.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
22-23高二下·四川绵阳·期末 查看更多[5]
四川省绵阳市2022-2023学年高二下学期期末数学(理)试题福建省永春县第一中学2023-2024学年高二上学期8月月考数学试题福建省厦门市厦门大学附属科技中学2023-2024学年高二上学期第一次阶段性测试数学试题湖北省宜昌市宜都市第一中学2023-2024学年高二上学期期中数学试题(已下线)模块一 专题1 空间向量的基本运算 A基础卷 期末终极研习室(2023-2024学年第一学期)高二人教A版
更新时间:2023-07-12 11:19:30
|
相似题推荐
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】如图,在三棱柱
中,侧棱垂直于底面,底边
,
,棱
,M,N分别线段
、
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/dd56eab1-08f2-4ccf-a896-fa81080d0cd2.png?resizew=152)
(1)求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca38004c7744a7567bef30f0674fe60f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3cc9cccfb4c260dac05f4ed57e8c10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a696a182fff038a86b2bbe8ca099442.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/dd56eab1-08f2-4ccf-a896-fa81080d0cd2.png?resizew=152)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940bffd87189b829a30e925c4767cabe.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2838d623f4ebb778514bd1575ef23cc3.png)
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【推荐2】如图,在长方体
中,
,
,E,F分别为
,
的中点.计算:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/6b695888-dec8-44a0-b24b-eaa0e5ada5ae.png?resizew=187)
(1)
;
(2)
;
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/6b695888-dec8-44a0-b24b-eaa0e5ada5ae.png?resizew=187)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392811647344bf0a888a87c3f7c47014.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f84f4f6536c60e580cfcdf478c0273.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a273ecdae499141d0ec484ded00e886.png)
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解题方法
【推荐1】如图所示,在平行六面体
中
,
,
,
,设
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/13/d26f269f-7a5c-42c3-a70e-1e8acbd8a9c4.png?resizew=165)
(1)用
,
,
表示
并求出
;
(2)求异面直线
与
所成角的大小(结果用反三角函数表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d0fdc5a00ca0e857b89a7e1420df29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa55c6ef551cb92a87525e90b20b0575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184359fe3cadc363cf4ebe586c2b3db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8780f5b68f8907a57c1c2f96233a78c5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/13/d26f269f-7a5c-42c3-a70e-1e8acbd8a9c4.png?resizew=165)
(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/053c0f6846f2bf8671b351a4263a0270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2854c67a40773c10bf0a89479d36a0df.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd4c85bb98a2a0afddd7ed92578ad2e.png)
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【推荐2】如图,在平行六面体
中,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/20/0e96a38d-1281-4386-81da-1c90681eed1b.png?resizew=151)
求:
(1)
;
(2)
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc40cd8cc4b21a9dbee0894cf742652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d97a83c7bc0b91016f61a43833042d4d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/20/0e96a38d-1281-4386-81da-1c90681eed1b.png?resizew=151)
求:
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8bad16b7cdf8c638cd324f5be5d834f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c92b5799d12ea37de46d7c942ce7a9.png)
您最近一年使用:0次
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解题方法
【推荐1】如图所示,平行六面体
中,以顶点
为端点的三条棱长都为2,且两两夹角为
,
与
的交点为
,点
在
上,且
,
,
,
.
(1)用
,
,
表示
,
;
(2)求
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.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://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e0f0ccc8492a0ccf1eee24867060643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94d5662be012b0f81cd93597f79dc32.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/3a5ad65006ab94c402084227f4675b57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/5/385207a1-e46f-4804-a9b9-7f8204e3d269.png?resizew=178)
(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/333a232d5882b2f03f9e02846c442a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c92b5799d12ea37de46d7c942ce7a9.png)
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解题方法
【推荐2】如图①,在四面体
中,
是棱
上靠近点
的三等分点,
、
分别是
、
的中点.设
,
,
,
(1)用
,
,
表示
;
(2)若
,且
,
,
,以
为原点,
、
、
方向分别为
轴、
轴、
轴正方向建立空间直角坐标系如图②,过点
做平面
,使平面
的一个法向量为
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14390e9b6b44472bdc7a131133ab39b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cd14dfc0024459f9d8e594c95c5106.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e07dcf0b16163e0e0e0c0f248466ee7e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/25/9bf2b77c-97cd-4873-a417-3561da42bcab.png?resizew=325)
(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/91174b2336306191ba275a87864172b7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d18e5adcfecb851b17655c1b92e578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b52dfb276d32f394717345df18f3ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d6adb1944e97f196b672e54498d416.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d37a17216b4d0da01ccb319840ee28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a024d854ec90da8b06f91562c9f9769e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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解题方法
【推荐1】如图,已知三棱锥O﹣ABC的侧棱OA,OB,OC两两垂直,且OA=1,OB=OC=2,E是OC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/29/e5c24a64-748e-4eba-bf2a-dbee4c2c3011.png?resizew=179)
(1)求异面直线BE与AC所成角的余弦值;
(2)求直线BE和平面ABC的所成角的正弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/29/e5c24a64-748e-4eba-bf2a-dbee4c2c3011.png?resizew=179)
(1)求异面直线BE与AC所成角的余弦值;
(2)求直线BE和平面ABC的所成角的正弦值.
您最近一年使用:0次
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解题方法
【推荐2】如图,在平行六面体
中,以顶点A为端点的三条棱长度都为2,且两两夹角为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/b02e7d9b-0ead-4aa2-b582-d0c88c36b6f3.png?resizew=174)
(1)求
的长;
(2)求
与
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/b02e7d9b-0ead-4aa2-b582-d0c88c36b6f3.png?resizew=174)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87470f6137cb2d3755bb229ab0dda909.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9146c5f1be07949fe8278022f4a9a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b680f91c4a693cc9ab2c23f2e9114ce.png)
您最近一年使用:0次