1 . 过抛物线
的焦点
的直线
交抛物线
于
两点(点A在第一象限),
为线段
的中点.若
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d939b804513036cd96fddce791ece09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f8b698e2bd65a7b03100d538a681be9.png)
A.抛物线![]() ![]() |
B.过![]() ![]() ![]() ![]() |
C.若![]() ![]() |
D.若过点![]() ![]() ![]() ![]() ![]() |
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解题方法
2 . 如图,在三棱锥
中,
,点
是
内的一点,若
与平面
所成的角分别是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2813b1870eb5c43664820f461a75b402.png)
,
的面积分别为
,则以下说法正确的是:( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/935e4635-c282-48c7-ac37-5ac9e934d40f.png?resizew=153)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75dc5b9679ae83920b94dbdfd14b0648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af81c86b2022fb15628b6819dbef68fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93d625834f7eeba0e091cc4e9f115b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2813b1870eb5c43664820f461a75b402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9365262e56aa0edb824d1e749d20e50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e2765deb65fe14a74c4a7b0674925e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6fedf1cfc617b4d468f46bc6172decf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/935e4635-c282-48c7-ac37-5ac9e934d40f.png?resizew=153)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
2021-09-08更新
|
765次组卷
|
3卷引用:山西省长治市第二中学2020-2021学年高一下学期第五次月考数学试题
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