名校
1 . 已知空间直角坐标系中,
为坐标原点,
的坐标为
,则
到原点
的距离与
到平面
的距离之和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e3b9bccbbd5c9a508ea2b5ff347c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
A.6 | B.7 | C.8 | D.9 |
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2021-10-21更新
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243次组卷
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3卷引用:海南省海口市灵山中学2021-2022学年高二上学期期中考试数学试题