1 . 如图,四棱锥
的体积为1,平面
平面
,
,
,
,
,
为钝角.
(1)证明:
;
(2)若点E在棱AB上,且
,求直线PE与平面PBD所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ad6a0124359e8b9f7649cf0bff51ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0295d3385f3ec11ad4d77d39d2e68ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f29c3e772e56008790298824122792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b8a8bede44a7720564504891f7982e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/21/bf809076-7750-42ca-a55b-743c09ca89e4.png?resizew=148)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62974d34de3a12418d6b700420afd1b2.png)
(2)若点E在棱AB上,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e37c9f2fec8e6966125547af2628d9bf.png)
您最近一年使用:0次
解题方法
2 . 如图,在直三棱柱
中,
,
,
在线段
上且
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/21/aae3be52-d847-4683-9814-faa377f67a66.png?resizew=139)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf6c80edb989cd755d5850d077b5de02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4305d8d52fe2cc79c78129652e64bb62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/21/aae3be52-d847-4683-9814-faa377f67a66.png?resizew=139)
A.![]() |
B.四棱锥![]() ![]() |
C.三棱锥![]() ![]() |
D.三棱锥![]() ![]() |
您最近一年使用:0次
解题方法
3 . 如图,在棱长为2的正方体
中,P为
的中点,则三棱锥
的外接球的表面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/d1e9f5fb-8370-49a1-8655-a26ef62b325a.png?resizew=167)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/114ecab0ab272ea86979fb8cf0d1c32b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/d1e9f5fb-8370-49a1-8655-a26ef62b325a.png?resizew=167)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 如图,在四棱柱
中,四边形
是平行四边形,
,
,
,
,
为
的中点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/25/65110a90-a035-447d-a6b6-2bc1b1cbee32.png?resizew=169)
(1)过点
作四棱柱的截面使其与面
垂直,并予以证明;
(2)若平面
与平面
的夹角的余弦值为
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05740f0c6071846227dc0ec177ad15e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c078a10649b3a953631690021aa59879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59fc4baf66de980a95f267051e6b190d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/25/65110a90-a035-447d-a6b6-2bc1b1cbee32.png?resizew=169)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf9628142422a4884bd59538da6d312.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/924d32b574fe69e43724304cf39513e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a35ac94f0ea5d79ae4530f5a3116f670.png)
您最近一年使用:0次
名校
解题方法
5 . 如图,在边长为
的正三角形的三个角处各剪去一个四边形.这个四边形是由两个全等的直角三角形组成的,并且这三个四边形也全等,如图①.若用剩下的部分折成一个无盖的正三棱柱形容器,如图②.则这个容器的容积的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-09更新
|
641次组卷
|
12卷引用:安徽省合肥市一六八中学2024届高三上学期名校名师测评卷数学试题(四)
安徽省合肥市一六八中学2024届高三上学期名校名师测评卷数学试题(四)福建省莆田市莆田第一中学2024届高三上学期第一次调研数学试题(已下线)6.3利用导数解决实际问题(分层练习,5大题型)-2023-2024学年高二数学同步精品课堂(人教B版2019选择性必修第三册)(已下线)5.3.2课时3导数在解决实际问题中的应用 第二练 强化考点训练(已下线)重难点11 立体几何常考经典小题全归类【九大题型】(已下线)第二章 立体几何中的计算 专题四 空间体积的计算 微点2 空间图形体积的计算综合训练【基础版】福建省宁德市古田县第一中学2023-2024学年高二下学期第一次月考数学试卷(已下线)高二 模块3 专题2 小题入门夯实练广东省江门市第一中学2023-2024学年高二下学期第一次段考数学试题(已下线)5.3.2.2函数的最大(小)值——随堂检测(已下线)高二 模块3 专题1 第2套 小题入门夯实练(苏教版)(已下线)湖北省七市州2024届高三下学期3月联合统一调研测试数学试题变式题6-10
名校
解题方法
6 . 在四面体
中,
,点
关于直线
的对称点为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70184a62e05cc04ac9c48dbfe2bb5139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
A.![]() |
B.![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.四面体![]() |
您最近一年使用:0次
7 . 已知正方体
的棱长为
是线段
上的一个动点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418f37840c0422e960ed0fd7e61477e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
A.平面![]() ![]() |
B.三棱锥![]() |
C.异面直线![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
您最近一年使用:0次
解题方法
8 . 已知边长为
的正方体
,点
为
内一个动点,且满足
,则点
的轨迹长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7988923407b9abb78ef8ab45829678fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2215f8b25b12637f894767d032f0ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 在三棱锥
中,线段
上的点
满足
,线段
上的点
满足
,则三棱锥
和三棱锥
的体积之比为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.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/7abd65aff5fc6f1c345db7d19e090605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b110d975aa5a4dd9f48e3b31128abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82e1b9949d05ef17c0cd24eb9ff9e92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 已知一个的球心为
,半径是
,
、
、
三个点均在球面上,且
,
,则三棱锥
的体积为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](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/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7ad3a578f403b9e6b97fa2dc955fc11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4278c0911e7df78965e78cff69cac5f5.png)
您最近一年使用:0次