1 . 如图,在四棱锥
中,底面四边形
为矩形,
,
,
,
,
平面
;
(2)若点
为
的中点,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62974d34de3a12418d6b700420afd1b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0453cfd7e92bf7746a88280b9e7b580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc28e69c1ba0aac981256887f7dfa94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c53e92421eb98578de84244d5d9ddbd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7ed85b76fb4c5e9a9a60bff4337742.png)
您最近一年使用:0次
2024-04-10更新
|
1782次组卷
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4卷引用:内蒙古乌海市第十中学2024届高三下学期4月月考文科(一)数学试题
内蒙古乌海市第十中学2024届高三下学期4月月考文科(一)数学试题宁夏固原市第一中学2024届高三下学期模拟考试文科数学试题(一)宁夏回族自治区石嘴山市第一中学2024届高考第四次模拟文科数学试题(已下线)专题21 空间图形的表面积和体积-《重难点题型·高分突破》(苏教版2019必修第二册)
2 . 设
,
,并且对于任意
,
,
成立.
(1)计算
,
,
的值,并猜想
的表达式;
(2)证明(1)中猜想
的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a8b40a93c0a9a1e390c001a095246c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcef60e5d4f3b49a3c6e2507e8998439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c44826e58f11a58d3a6c233fc5df2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6267f26cf64e205dae5a6be72d9383d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f47cc0799242344f99d8d8428a86ad1.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce6155e181e21ce56ea658b70f8af17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9347bb4ffedcbea2f4c16d047a138d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32a859898e9905e0524d3a982eb34b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fcec7af3520884b173b29bda6c657a.png)
(2)证明(1)中猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fcec7af3520884b173b29bda6c657a.png)
您最近一年使用:0次
2021-08-02更新
|
45次组卷
|
2卷引用:内蒙古自治区乌海市2020-2021学年高二下学期期末数学理科试题