名校
解题方法
1 . 如图,在棱长均为1的正三棱柱
中,点
在棱
上,且
.记
,
,
.
表示
、
;
(2)求直线
与直线
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47ed867750dba3df7a4834827f272c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef36fa79d02dd76e9ac5fda1689268f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4f8173bb7787b6b107acfe767dd1d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df107a0db8e7084e46cbf0edc9dd4878.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e12e95f703ad30ab9a3d38376830989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d021a5c98388463d577675e58068aa7.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
您最近一年使用:0次
名校
解题方法
2 . 如图所示,平行六面体
中,
.
表示向量
,并求
;
(2)求直线
与直线
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083e5ad385e6a0801801073f1cafadb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d68873c59a21b0cd408cdf2b47d51096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccec46f7c4da972fef6e940158628242.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c33e3af60b6aa94f39bbd04470d2e404.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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名校
3 . 如图,三棱锥的棱长都相等,记
,
,
,点
在棱
上,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa8c53645db602c72b00b599c2c0ff97.png)
(2)若D是棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4bd1953f49c988de31592b844f79b83.png)
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解题方法
4 . 如图,在底面
为菱形的平行六面体
中,
分别在棱
上,且
,且
.
(1)求证:
共面;
(2)当
为何值时,
;
(3)若
,且
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e86e3991200297ad172455e5ea93f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5cdcc0d2cbcf7ebf6975618f3114d51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba9196864f83e290af5ba64c4eb2c7ef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/24/ef05bb8c-102a-4217-a2e1-1184e895085c.png?resizew=160)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b488a540540a2d6a4e3b8b5f67b04611.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6df10d0b03d6f6e640d9c5f3695a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1515a445310d259a080d02e16c2e58e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0e44cb429eea46e7ee4320147192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccffde150c595f4e4d444f251c87b1d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
您最近一年使用:0次
2024-04-07更新
|
327次组卷
|
2卷引用: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
2024高三·全国·专题练习
5 . 如图平行六面体
中,三棱
间夹角均为
.求:
(1)对角线
的长度;
(2)平行六面体全面积
;
(3)平行六面体体积
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d92178a5c6a76586292f622da298a8db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a12ffb2088a13eda785cb147122375e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/21/5a0bdf7f-a881-4e5c-8746-4fecfe952220.png?resizew=175)
(1)对角线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
(2)平行六面体全面积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69e5c11ced8d1483c518ccd650924e47.png)
(3)平行六面体体积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
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名校
6 . 如图所示,平行六面体
中,
.
![](https://img.xkw.com/dksih/QBM/2024/3/24/3460446901469184/3460614095314944/STEM/f94afd5662ae4c50b3b056cefad9a2cc.png?resizew=113)
(1)用向量
表示向量
,并求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083e5ad385e6a0801801073f1cafadb9.png)
![](https://img.xkw.com/dksih/QBM/2024/3/24/3460446901469184/3460614095314944/STEM/f94afd5662ae4c50b3b056cefad9a2cc.png?resizew=113)
(1)用向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d68873c59a21b0cd408cdf2b47d51096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccec46f7c4da972fef6e940158628242.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67184c828fc1181d5c6833b22573f325.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d986c6d94cf0d0c5365bd55a052af64.png)
您最近一年使用:0次
2024高三·全国·专题练习
解题方法
7 . 如图,四棱锥
中,底面
为直角梯形,
,
,设
的二面角为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://img.xkw.com/dksih/QBM/2024/3/19/3456860575956992/3456980262281216/STEM/5afb8017eae245c6bd74fd0e06528f53.png?resizew=183)
(1)当
时,求
的体积;
(2)设N为
的中点,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d52bebecac3bc1e5901a99a5ab23fe97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d294d69caac577339f11f477b2047e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://img.xkw.com/dksih/QBM/2024/3/19/3456860575956992/3456980262281216/STEM/5afb8017eae245c6bd74fd0e06528f53.png?resizew=183)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a10f3e254ade296ead255d9f463baee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
(2)设N为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38aae33d8282c6fbb86fc9bae315cbee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa87e8c74812374d20ed902d25d3d918.png)
您最近一年使用:0次
8 . 如图,已知四边形
是边长为
的正方形,
底面
,
,设
是
的重心,
是
上的一点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/12/a5ac92fb-1c89-4a78-afb7-a820510b79c2.png?resizew=150)
(1)试用基底
表示向量
;
(2)求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64568414c25073afaaaa2bb585d8470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a99eaeb83fb9a5ba74a9fc8f5fb18e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002a3b0ffc896755f903da63e3989576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e453b7eb2496c9d8b4668034e7d16a72.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/12/a5ac92fb-1c89-4a78-afb7-a820510b79c2.png?resizew=150)
(1)试用基底
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1a8df2a6500d9efd065065547647db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587940d5c4389a63bd72228c64db77bc.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37911e56b9180699c76cc0eba7fe5c3.png)
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名校
解题方法
9 . 如图,在平行六面体
中,
,
,
,
,点P满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/10/d7de5e5c-6d65-4483-a9f8-d1d4bea1be68.png?resizew=180)
(1)证明:O,P,
三点共线;
(2)求直线
与平面PAB所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a23f01af749100e1888bba06268843db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27db558e8db4c957654c8e5cecd2d2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051166055185ba78ed6c4260c14059a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b555561fe89500911f265677801811fd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/10/d7de5e5c-6d65-4483-a9f8-d1d4bea1be68.png?resizew=180)
(1)证明:O,P,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
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名校
10 . 棱长为2的正四面体
中,设
,
,
.M,N分别是棱
的中点.
(1)用向量
,
,
表示
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a351136b18bc7d3bd5122332772ab23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d9ac737639ad7ce99887f9ef07685c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20a9410ceb649e303910f8efe5f7531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbadd77fde781d924b14e6dc57505ccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbb19cb4eb2d7f3207559eb07355ba2.png)
(1)用向量
![](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/4a014dff8997c661055229de29c61cfc.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f2bbcf2f653920ab876f299c18f71e.png)
您最近一年使用:0次