名校
1 . 已知定点
都在平面
内,
,点
是平面
内异于
和
的动点,且满足
,设
与平面
所成的角为
,二面角
的大小为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae1567d8f98fabc1a3948f8602cc5e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bcc38381fc54abe6de16b434ed261c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.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/a4e7228951680db76272656cbefd6ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30513ea48bc1ef3ae78adac83d894f14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27d39f37441ee55dbc8f1a6ca199a66b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59fe46f47336606882e51409111f40c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfaafca1b1356feee99bdede9ecf5a82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266b82be5c64ff2468ad1905a4b69fd4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
真题
2 . 如图,在直三棱柱
中,平面
侧面A1ABB1.
(Ⅰ)求证:
;
(Ⅱ)若直线AC与平面A1BC所成的角为θ,二面角A1-BC-A的大小为φ,试判断θ与φ的大小关系,并予以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21dee56b9f36ba8f76fe67b76383636b.png)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
(Ⅱ)若直线AC与平面A1BC所成的角为θ,二面角A1-BC-A的大小为φ,试判断θ与φ的大小关系,并予以证明.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/b28f4071-53aa-4014-995c-ca4e7f2d90af.png?resizew=151)
您最近一年使用:0次
2016-11-30更新
|
1711次组卷
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6卷引用:2011-2012学年河北省正定中学高二第一学期期末考试文科数学试卷
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