如图,四边形
是边长为2的正方形,
为等腰三角形,
,平面
⊥平面
,点
在
上,且
平面
.
![](https://img.xkw.com/dksih/QBM/2011/4/18/1570121800425472/1570121805856768/STEM/de943d05282e4e60aacdf9f475362e2e.png?resizew=143)
(1)判断直线
与平面
是否垂直,并说明理由;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45087cde2d66377517a3fce5553b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa3c61d6c19e187b4b824b6f5610cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
![](https://img.xkw.com/dksih/QBM/2011/4/18/1570121800425472/1570121805856768/STEM/de943d05282e4e60aacdf9f475362e2e.png?resizew=143)
(1)判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
10-11高一下·海南·期末 查看更多[1]
(已下线)2010-2011年海南省嘉积中学高一下学期质量检测数学试卷(一)A卷
更新时间:2016-11-30 18:03:54
|
相似题推荐
【推荐1】如图,在四棱锥
中,
底面ABCD,
⊥
,
,
,
,点E为棱PC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/17/098e82f4-286b-462c-8911-1cee1b86c873.png?resizew=161)
(1)证明:平面
⊥平面PCD;
(2)求四棱锥
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba814113887c21637c1954f244812f8.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/17/098e82f4-286b-462c-8911-1cee1b86c873.png?resizew=161)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
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解答题
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较易
(0.85)
【推荐2】如图,在三棱柱
中,点
在平面
内的射影点为
的中点
.
(1)证明:
平面
;
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/453dd6d45a8bbc1ac6ce95616553b737.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec965da1a0736ce464b78c32fcb3f704.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa84da7ead562cffd02afd5940f8aa3.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐1】如图,在四棱锥
中,底面正方形ABCD的边长为2,
底面ABCD,E为BC的中点,PC与平面PAD所成的角为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/30eeda0f-c194-4b36-9f1f-8ded19195965.png?resizew=184)
(1)求直线PE与平面PAB所成角的大小;(结果用反三角函数表示)
(2)求点B到平面PCD的距离.
![](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/717d026dd0029aab76fd410d88f67bd8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/30eeda0f-c194-4b36-9f1f-8ded19195965.png?resizew=184)
(1)求直线PE与平面PAB所成角的大小;(结果用反三角函数表示)
(2)求点B到平面PCD的距离.
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
名校
解题方法
【推荐2】如图,在直三棱柱
中,
,
,
分别在
,
上,且满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/bfd518ed-739f-4ec1-ac2e-defd6e8b01fe.png?resizew=140)
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](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/e96a6b20a35af7755e5d90789ea862da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd46f855496616b6babd5a1eae8d801c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/bfd518ed-739f-4ec1-ac2e-defd6e8b01fe.png?resizew=140)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
您最近一年使用:0次