名校
解题方法
1 . 半径为R的光滑半球形碗中放置着4个半径为r的质量相同的小球,且小球的球心在同一水平面上,今将另一个完全相同的小球至于其上方,若小球不滑动,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dff3606c7bf728b4f539261461cde677.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2 . 如图,
、
、
分别是正方体
的棱
、
、
的中点,
是
上的点,
平面
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e776314d1f1670d3a90f2a35125feb67.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc8e622cc5d651990540fe899e317de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd66687a8c0d2d00ba430b040e9f647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e776314d1f1670d3a90f2a35125feb67.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/18/756b8901-622e-4276-b2d6-37de4c4cec72.png?resizew=153)
您最近一年使用:0次
3 . 在平行六面体
中,已知
,
,
,
,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3e58edd1f900ca82bb2a3058293f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a674aa2ce5caabcad5abe65b5402ce6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f19bb8e28c8534439708afed94bde8e.png)
A.10.5 | B.12.5 |
C.22.5 | D.42.5 |
您最近一年使用:0次
2023-01-10更新
|
1325次组卷
|
5卷引用:四川省2023届名校联考高考仿真测试(四)文科数学试题
名校
4 . 已知S是
ABC所在平面外一点,D是SC的中点,若
=
,则x+y+z= _______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f90e16e18b1e88ebb1ab811d06be76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e78d72285816465f54c2981f39a72546.png)
您最近一年使用:0次
2021-10-04更新
|
336次组卷
|
3卷引用:四川省成都市玉林中学2022-2023学年高三高考模拟考试理科数学试题
名校
5 . 如图,平行六面体
中,
,
,
,
,
,则
的长为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f839f2fb2a1962d86b082b48f6c863e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb8fb552b9e21dbaba74d11aa747790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d6237789c1aeac0493b269f3eadc4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://img.xkw.com/dksih/QBM/2020/8/3/2520107171741696/2520865646075904/STEM/68d21ac0e1e941889e71853605f8235f.png?resizew=152)
您最近一年使用:0次
2020-08-05更新
|
827次组卷
|
8卷引用:四川省遂宁市2020届高三三诊考试数学(理科)试题
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