名校
1 . 已知:四棱锥
的底面是直角梯形,
平面
,
,
,
,
,点E在棱
上,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/ad1ee034-69bc-4538-8661-38912b3ae43c.png?resizew=204)
(1)求证:
平面
;
(2)求证:
;
(3)若F是棱
上的点,满足
与平面
所成角的正弦值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4795ee1f96b430529934e2231b38885d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a301baf6cc0628366e6661a87a2d93ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c3ec174b1ce835cc8737ff6ce57e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee41428bf3ee6db18684e5e319bfe668.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/ad1ee034-69bc-4538-8661-38912b3ae43c.png?resizew=204)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89e782230f15c1bcebfe2ea2703b746b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca48c18021e7be4bbb3e95576e1c1b5f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589ddae20626f9aaac616d2a3b5d95bd.png)
(3)若F是棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2319a01218514917e446dfc807a625ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca48c18021e7be4bbb3e95576e1c1b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08dd1e25420bb85b96dea24e5d16abee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243fcd0b5e7fc1a4d55e191f5fcbd332.png)
您最近一年使用:0次
名校
解题方法
2 . 已知两条异面直线
对应的方向向量分别是
,
,则异面直线
的夹角为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade9020718f2190f5b2b571ae9f47e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb0abfe1b8fbd7c5f8d81bd8648c23c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
您最近一年使用:0次
2022-11-15更新
|
321次组卷
|
2卷引用:北京市丰台区第十二中学2022-2023学年高二上学期期中数学试题
22-23高二上·北京·期中
名校
3 . 在正方体
中,
,
分别是棱
,
的中点,则直线
和
所成角的余弦值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](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/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
4 . 如图,在四棱锥
中,底面
为平行四边形,
,点
在棱
上.
;
条件②:平面
平面
.
从条件①和②中选择一个作为已知,解决下列问题:
(1)判断
与
是否垂直,并证明;
(2)若点
为棱
的中点,点
在直线
上,且点
到平面
的距离为
,求线段
的长.
(3)求直线
与平面
所成角的正弦值的取值范围.
注:若选择①和②分别作答,按选择①给分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc22fda2215bb15af6f4cc5f2775eb05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
条件②:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04c222223dae9ef27d4c132534d9848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
从条件①和②中选择一个作为已知,解决下列问题:
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfaf581b4f42a25087f7eee23a7d66b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfaf581b4f42a25087f7eee23a7d66b6.png)
注:若选择①和②分别作答,按选择①给分.
您最近一年使用:0次
2022-11-13更新
|
524次组卷
|
3卷引用:北京市海淀区北京第一零一中学2022-2023学年高二上学期期中考试数学试题
北京市海淀区北京第一零一中学2022-2023学年高二上学期期中考试数学试题湖北省襄阳市老河口市第一中学2022-2023学年高二上学期元月月考数学试题(已下线)第五章 破解立体几何开放探究问题 专题二 立体几何开放题的解法 微点2 立体几何开放题的解法综合训练【基础版】
名校
解题方法
5 . 如图,在棱长为2的正方体
中,E、F分别为棱
的中点,G为面对角线
上的一个动点,则下列选项中不正确 的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/30bb546e-a294-48ca-af0f-d9a1f855e48a.png?resizew=176)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe9cdfd9088a3c5f24617d1d9d1157d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/30bb546e-a294-48ca-af0f-d9a1f855e48a.png?resizew=176)
A.三棱锥![]() |
B.线段![]() ![]() |
C.线段![]() ![]() ![]() |
D.设直线FG与平面![]() ![]() ![]() ![]() |
您最近一年使用:0次
6 . 在梯形ABCD中,
,
,
,P为AB的中点,线段AC与DP交于O点,将
沿AC折起到
的位置,使得平面
⊥平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/e5de1c14-f60a-43eb-9ec8-5a075f751db1.png?resizew=366)
(1)求证:
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde275553b4e49f5adffe606875c6ec3.png)
(2)平面ABC与平面
夹角的余弦值
(3)线段
上是否存在点Q,使得CQ与平面
所成角的正弦值为
?若存在,求出
的值:若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89ee6576c35c682bcb0eff43bd958d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6829c6214e60edbfbf1e31601c6bcb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf468f5132e14ee1d8cc766808b11af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f921b462ee12ad5749ea45d75f609b7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/e5de1c14-f60a-43eb-9ec8-5a075f751db1.png?resizew=366)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002cc6a0373255f39172cdee62fb6b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde275553b4e49f5adffe606875c6ec3.png)
(2)平面ABC与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e95fa1c3bcd3d0464fcadf248e90ace.png)
(3)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be451ce5fad246389ccf4864929d81d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e95fa1c3bcd3d0464fcadf248e90ace.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80dbac2006d30c49943f0241fd976eb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b188172a322d69106c638e1603ac13f.png)
您最近一年使用:0次
解题方法
7 . 如图,正方体
的棱长为2,E为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/ff59b6fa-b61f-46be-a7c6-5d695575094c.png?resizew=159)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/ff59b6fa-b61f-46be-a7c6-5d695575094c.png?resizew=159)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf9628142422a4884bd59538da6d312.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
您最近一年使用:0次
2022-11-12更新
|
103次组卷
|
2卷引用:北京市顺义区第二中学2022-2023学年高二上学期期中考试数学试题
解题方法
8 . 如图,在边长为
的正方体
中,
为线段
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/715bbbf5-aaee-42a1-a9fd-ce46099f3595.png?resizew=174)
(1)求证:
平面
;
(2)求点
到平面
的距离;
(3)直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/715bbbf5-aaee-42a1-a9fd-ce46099f3595.png?resizew=174)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd597851c0db4e4de4769e10e09383b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7850e88507969a07a9515347b97c7b6e.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7850e88507969a07a9515347b97c7b6e.png)
(3)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7850e88507969a07a9515347b97c7b6e.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,在四棱锥P—ABCD中,底面ABCD是边长为3的正方形,PO⊥底面ABCD,
.点
在棱
上,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d669df6c391aa83150df5ae96c39d8.png)
;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/b2282e1f-056d-422d-980b-8db369f19e5d.png?resizew=198)
(1)当
,求直线
与平面
所成角的正弦值;
(2)当
取何值时,二面角
的正弦值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e32a859e1616f7a7e4202d58d030794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d669df6c391aa83150df5ae96c39d8.png)
;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/b2282e1f-056d-422d-980b-8db369f19e5d.png?resizew=198)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae890f9e8b32aa53a54158f24f4a87bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1069d514c3c32aeabd274475ee209ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539dd5b8c71359e3a12f67ddf889f643.png)
您最近一年使用:0次
名校
10 . 在正四棱柱ABCD—
中,
P为B1C1的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/6288a26e-a8c6-43a4-901f-c58adebb923b.png?resizew=187)
(1)求异面直线AC与BP所成的角
(2)求直线AC与平面ABP所成的角
(3)求二面角
的余弦值
(4)求点B到平面APC的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e18d304c8b07cd4d7e8070ae6f39401.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/6288a26e-a8c6-43a4-901f-c58adebb923b.png?resizew=187)
(1)求异面直线AC与BP所成的角
(2)求直线AC与平面ABP所成的角
(3)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f7a0ab16cbb95691b3d80334a91401.png)
(4)求点B到平面APC的距离.
您最近一年使用:0次