名校
1 . 如图,在四棱锥中,底面四边形
为正方形,且
,
,
(1)若
![](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/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b17e6cbaf17c2ba0a1d333f02aebf58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd3eb538f36e6e722e4ce125266b99b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
2024-01-30更新
|
204次组卷
|
2卷引用:浙江省杭州第二中学2023-2024学年高二上学期期末考试数学试题
名校
2 . 如图,在三棱锥
中,
,
,
平面
,平面
平面
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/82d50d27-4692-4979-83dc-30b553aab968.png?resizew=156)
(1)求证:
;
(2)求平面
与平面
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd893c4964b7f1ef69f0563d74c76d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/82d50d27-4692-4979-83dc-30b553aab968.png?resizew=156)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf2f0df53aa68c9c334165034788166.png)
您最近一年使用:0次
名校
解题方法
3 . 已知椭圆C:(
,
)的左、右焦点分别为
、
,离心率为
,经过点
且倾斜角为
(
)的直线l与椭圆交于A、B两点(其中点A在x轴上方),
的周长为8.
(1)求椭圆C的标准方程;
(2)如图,将平面xOy沿x轴折叠,使y轴正半轴和x轴所确定的半平面(平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0530e3288e75edc196427ebc1448f201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16498e054295750f17b6fb4c05f66b84.png)
①若,求三棱锥
的体积,
②若,异面直线
和
所成角的余弦值;
③是否存在(
),使得
折叠后的周长为与折叠前的周长之比为
?若存在,求
的值;若不存在,请说明理由.
您最近一年使用:0次
4 . 如图,在直四棱柱中,底面
是正方形,
,
,
分别是棱
上的动点.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d2d217e9bcd059908f117dfc4d4259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a883db666ab6650e9957b0bb1251b9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6c137662deba9f70a9f29f5cfb48f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/515d43fc80dbff6ab825bcd5bf7d8bbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ee3c61d2298e75fc4f1643f8ebc2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417022242845ca611c8b0c2edc484710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0055d0805e1b26ee7a881e12afc20acd.png)
您最近一年使用:0次
解题方法
5 . 如图,四棱锥
的底面是边长为1的菱形,
,
平面ABCD,
,M为PB的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/12/66626688-0000-44ba-9df0-e5607dc43a8b.png?resizew=221)
(1)求证:平面
平面PDB;
(2)求CP与平面MAC所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e7ecde89911239d0972cfc1406b57d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bec03e804f0cea1db5cde2aa185056a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/12/66626688-0000-44ba-9df0-e5607dc43a8b.png?resizew=221)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9332d230f25309248ff2a6161f060229.png)
(2)求CP与平面MAC所成角的正弦值.
您最近一年使用:0次
2024-01-25更新
|
448次组卷
|
3卷引用:浙江省温州市2023-2024学年高二上学期期末教学质量统一检测数学试题(A)
浙江省温州市2023-2024学年高二上学期期末教学质量统一检测数学试题(A)浙江省温州市2023-2024学年高二上学期期末教学质量统一检测数学试题(B卷)(已下线)第07讲 空间直线﹑平面的垂直(二)-《知识解读·题型专练》
名校
6 . 如图,在三棱锥
中,平面
平面
,且
,
,点
在线段
上,点
在线段
上.
;
(2)若
平面
,求
的值;
(3)在(2)的条件下,求平面
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58443bda69348e6e586774c3109b9f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/137631ed65a2301255a7e3c5ef44828e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281db65d019f6f77dc0dfcc675ce93d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02ba9d3698ec699f3b61456f4c9830d.png)
(3)在(2)的条件下,求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1956db288a5a3b8c97d2539e9e5e4f85.png)
您最近一年使用:0次
2024-01-10更新
|
1858次组卷
|
6卷引用:浙江省杭州学军中学紫金港校区2023-2024学年高二上学期期末数学试题
浙江省杭州学军中学紫金港校区2023-2024学年高二上学期期末数学试题吉林省通化市梅河口市第五中学2024届高三上学期期末数学试题辽宁省沈阳市2023-2024学年高三上学期教学质量监测(一)数学试题(已下线)第5讲:立体几何中的动态问题【练】(已下线)专题04 立体几何(已下线)信息必刷卷02(江苏专用,2024新题型)
解题方法
7 . 如图所示,已知正方体
的棱长为2,
,
分别为
,
的中点.
(1)求A1到平面C1EF的距离;
(2)求平面
与平面
夹角的余弦值
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/6/b8bb8931-d20c-476a-a18e-ac70c7a7d9a1.png?resizew=154)
(1)求A1到平面C1EF的距离;
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bff3ccea5989c60e51e321af3f53f54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae7f4612c548b1f72a964ddb291cd2e.png)
您最近一年使用:0次
名校
解题方法
8 . 如图,在直三棱柱
中,
.
(1)证明:
;
(2)若点
在棱
上,
,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c6ccff01e1814ae28ea11c5c2e941d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/331995fb-1694-43e2-84bc-cd6ac8c0c788.png?resizew=153)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f35646cb29fafd1e1a214b69e4f22d.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69eb83c51d63c9cb40536b151ad68f68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea848cd2aa3a464618020475097949fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d808a1351940a41a2ba27ab26d7fc680.png)
您最近一年使用:0次
2023-12-05更新
|
555次组卷
|
2卷引用: 浙江省绍兴市第一中学2023-2024学年高二上学期期末考试数学试卷
名校
解题方法
9 . 如图,在长方体
中,
,
,
为
的中点.
(1)证明:
;
(2)求直线
与平面
夹角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7d64fc81c857b124268609a8beb77b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/30/5d7b8523-2a4c-43d4-ba2b-7a18240a16f5.png?resizew=164)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0fa81c1f81266b4ef3d471bc6bfc38d.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dc61d5de97b5a40be925b278ae494c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
您最近一年使用:0次
2023-11-09更新
|
177次组卷
|
3卷引用:浙江省温州市2022-2023学年高二上学期期末数学试题(B卷)
浙江省温州市2022-2023学年高二上学期期末数学试题(B卷)(已下线)模块四 专题4 重组综合练(浙江)期末终极研习室(高二人教A版)湖北十堰市部分普通高中2023-2024学年高二上学期11月期中数学试题
名校
解题方法
10 . 在四棱锥
中,
平面
,底面
是正方形,E,F分别在棱
,
上且
,
.
∥平面
;
(2)若
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](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/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/575c840debd9149001fe32fd9d2b5c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dea041a280921f652f718ff2c1913be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec1dcba40b263c1119ea0a36651c7812.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/137eebd1621a51cc5af32b373d983d2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec1dcba40b263c1119ea0a36651c7812.png)
您最近一年使用:0次
2023-10-18更新
|
1158次组卷
|
8卷引用:浙江省温州市第五十一中学2024届高三上学期期末数学试题