名校
1 . 若圆
:
与圆
:
恰有三条切线,则
的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5450808620957d2bd4df9a73956468ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3ebccdf9cab089ef8b42bcbdcbede3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.![]() | B.-3 | C.3 | D.![]() |
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2019-12-30更新
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4卷引用:云南省德宏傣族景颇族自治州梁河县第一中学2019-2020学年高二上学期期中数学试题
云南省德宏傣族景颇族自治州梁河县第一中学2019-2020学年高二上学期期中数学试题陕西省西安市铁一中2016-2017学年高一下学期期中数学试题(已下线)核心考点02圆(3)(已下线)期末真题必刷基础60题(35个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(沪教版2020必修第三册)
2 . 如图,三棱锥
中,
平面
,
,
,
,
是
的中点,
是
的中点,点
在
上,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/093cffd5-daf4-46dd-a24f-7eed0ed8b2fa.png?resizew=159)
(1)证明:平面
平面
;
(2)证明:
平面
;
(3)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.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/1bae7599ad243c12d94325ad917f0a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f656e1d1f68954e5f06de8958f6a9310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7502eee6f33e8c940dec63ab6473c52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/096375a03f580da715f6424bee4be3a9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/093cffd5-daf4-46dd-a24f-7eed0ed8b2fa.png?resizew=159)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(3)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ca12f11f39405a6a49042c5e294862.png)
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2019-12-25更新
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3卷引用:云南省玉溪第一中学2019-2020学年高二上学期第二次月考数学(理)试题
云南省玉溪第一中学2019-2020学年高二上学期第二次月考数学(理)试题(已下线)江苏省南通市如皋市2020-2021学年高一下学期期中数学试题安徽省安庆市第二中学2021-2022学年高一下学期6月月考数学试题
名校
3 . 已知三棱锥
中,
,
,
,若该三棱锥的四个顶点在同一个球面上,则此球的体积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0214e0eef02eadddf59c12d30bada70b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c092ad8e71db52e8966993beebb50ee3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79092878f99efdbf3f05715f732a3af9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-12-01更新
|
2738次组卷
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11卷引用:云南省昆明市第一中学2022-2023学年高一下学期期中考试数学试题
云南省昆明市第一中学2022-2023学年高一下学期期中考试数学试题辽宁省六校协作体2019-2020学年高三上学期期中数学(文)试题宁夏回族自治区银川市兴庆区银川一中2019-2020学年高三第五次月考数学(理)试题江西省赣州市2019-2020学年高二上学期12月月考数学(理)试题吉林省通钢一中、集安一中、梅河口五中等联谊校2019-2020学年高三下学期第五次月考数学(理)试题四川省泸州市泸县第二中学2019-2020学年高三下学期第二次月考数学(文)试题四川省遂宁市射洪中学2020届高三下学期第二次月考数学(理)试卷四川省泸州市泸县第二中学2019-2020学年高三下学期第二次月考数学(理)试题四川省遂宁市射洪中学2020届高三下学期第二次月考数学(文)试题(已下线)专题01 多面体与球的切接问题 (第四篇)-2020高考数学压轴题命题区间探究与突破(已下线)第七章 立体几何与空间向量 第一节 第二课时 与球有关的切与接问题 讲
4 . 如图,在长方体
中,
,
,点
在棱
上移动.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/ebb5f72f-1daf-45c9-a863-4325b2cff680.png?resizew=193)
(1)证明:
;
(2)求直线
与平面
所成的角;
(3)当
为
的中点时,求三棱锥
的体积.
![](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/2022/12/17/ebb5f72f-1daf-45c9-a863-4325b2cff680.png?resizew=193)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0fa81c1f81266b4ef3d471bc6bfc38d.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11990928efcd42ebe7a82a5f1105a708.png)
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2019-12-01更新
|
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2卷引用:云南省大姚县第一中学2019-2020学年高一上学期期末数学试题
名校
解题方法
5 . 在四棱锥P-ABCD中,PA
平面ABCD,菱形ABCD的边长为2,且
,点E、F分别是PA,CD的中点,
(1)求证:EF
平面PBC
(2)若PC与平面ABCD所成角的大小为
,求C到平面PBD的距离
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.png)
(1)求证:EF
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
(2)若PC与平面ABCD所成角的大小为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c062954a2db4bb7149732fd81dfead.png)
您最近一年使用:0次
名校
6 . 直线
与直线
互相垂直,则a的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff6b63230820743f688e252dd0acbbe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5de5e32ca650167c6d7d74b17ce635.png)
A.2 | B.-3或1 | C.2或0 | D.1或0 |
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2019-11-10更新
|
2960次组卷
|
7卷引用:云南省昭通市水富市云天化中学2019-2020学年高二上学期期中数学(理)试题
云南省昭通市水富市云天化中学2019-2020学年高二上学期期中数学(理)试题云南省昭通市水富市云天化中学2019-2020学年高二上学期期中数学(文)试题广东省深圳红岭中学2017-2018学年高一上学期期末数学试题湖南省长沙市雨花区2019-2020学年高一上学期期末数学试题(已下线)专题06 直线和圆的方程的典型题(二)-【尖子生专用】2021-2022学年高二数学考点培优训练(人教A版2019选择性必修第一册)(已下线)第01讲 复习课-直线与方程-【寒假自学课】2022年高二数学寒假精品课(苏教版2019选择性必修第二册)新疆维吾尔自治区和田地区第二中学2022-2023学年高二上学期12月月考数学试题
名校
7 . 在平面直角坐标系
中,已知圆
:
和点
,过点
的直线
交圆
于
两点
(1)若
,求直线
的方程;
(2)设弦
的中点为
,求点
的轨迹方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e4c652fd34eb7de9dbf84d92c6e640.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb6573126516181bee81e64513ec1da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)设弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2019-11-10更新
|
730次组卷
|
3卷引用:云南省昭通市水富市云天化中学2019-2020学年高二上学期期中数学(理)试题
名校
8 . 如图,在四棱锥
中,底面
是正方形,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/3c3a875b-b1de-45b0-88a3-9c6d5a7ef5a8.png?resizew=216)
(1)证明:
平面
;
(2)若
是
的中点,
是棱
上一点,且
平面
,求二面角
的余弦值.
![](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/0e7b6d04f024ca05cdfacc8ce9137c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ce2e773ee3f553baf5d56582c6ade1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/3c3a875b-b1de-45b0-88a3-9c6d5a7ef5a8.png?resizew=216)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c372d059202ec388960b125d4a87dc84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4734735213b599a9915e1ed91a5d8ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281177cc5c7e6294a474dc64ee02aa29.png)
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2019-11-06更新
|
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2卷引用:云南省师范大学附属中学2019-2020学年高三上学期11月月考数学(理)试题
名校
9 . 一个四棱锥的三视图如图所示,则该四棱锥的体积为
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/ca8cb235-b8a2-4515-8d2d-9ce04facbf95.png?resizew=167)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/ca8cb235-b8a2-4515-8d2d-9ce04facbf95.png?resizew=167)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-10-30更新
|
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|
2卷引用:云南省玉溪第一中学2019-2020学年高二上学期第一次月考数学(文)试题
10 . 如图,在三棱柱
中,
、
分别是
、
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/4f46aba0-fbb9-4167-ac62-520e3e2c4441.png?resizew=160)
(1)设棱
的中点为
,证明:
平面
;
(2)若
,
,
,且平面
平面
,求三棱柱
的高.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/4f46aba0-fbb9-4167-ac62-520e3e2c4441.png?resizew=160)
(1)设棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8355349fbe4f1ff9350e411a621b4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f49282e671435e499a78d26c7b81a711.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f3635ac9d5398fa70d10f098e875cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f68ce09db7cb705ab0a43ecf17748e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0671b4776e142e17a79af5b3f0378ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
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2019-10-30更新
|
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2卷引用:云南省玉溪第一中学2019-2020学年高二上学期第一次月考数学(文)试题