名校
解题方法
1 . 如图,圆柱的轴截面
是正方形,点
是底面圆周上异于
的一点,
,
是垂足.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/0944bc73-af3d-4f0b-8a26-95b1ca887fa2.png?resizew=148)
(1)证明:
;
(2)若
,当三棱锥
体积最大时,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876bb8ce0ca53475fa091ffd18bdc94a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/0944bc73-af3d-4f0b-8a26-95b1ca887fa2.png?resizew=148)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e3d90003d6940c8e9e90916172ba97.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2daa808ca8c95f282dae5e1d578cb65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
您最近一年使用:0次
2020-11-20更新
|
1133次组卷
|
5卷引用:云南师范大学附属中学呈贡校区2020—2021学年高二上学期第一学段模块考试(期中考试)试题
11-12高二下·吉林延边·期末
2 . 在正方体
中.
![](https://img.xkw.com/dksih/QBM/2012/9/4/1570997134008320/1570997139193856/STEM/14206ce4c4174118940775ed45557564.png?resizew=202)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a0e00113872f921116b6c0c3177d0f.png)
(2)求异面直线
与
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/2012/9/4/1570997134008320/1570997139193856/STEM/14206ce4c4174118940775ed45557564.png?resizew=202)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a0e00113872f921116b6c0c3177d0f.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
您最近一年使用:0次
2016-12-01更新
|
1378次组卷
|
3卷引用:云南省文山州砚山县第三高级中学2020-2021学年高二上学期期中考试数学试题
云南省文山州砚山县第三高级中学2020-2021学年高二上学期期中考试数学试题(已下线)2011-2012学年吉林省汪清六中高二下学期期末考试文科数学试卷甘肃省金昌市永昌四中2018-2019学年高二下学期期末考试数学(文)试题