2011高三·河北·专题练习
1 . 已知
是平行六面体.
![](https://img.xkw.com/dksih/QBM/2011/5/28/1570226144337920/1570226149433344/STEM/29a4fe3c9e6e44ff805376b65ab40baa.png?resizew=174)
(1)化简
,并在图形中标出其结果;
(2)设
是底面
的中心,
是侧面
的对角线
上的点,且
,设
,试求
,
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebecdc0f0f815ff0083d85d3f539b36d.png)
![](https://img.xkw.com/dksih/QBM/2011/5/28/1570226144337920/1570226149433344/STEM/29a4fe3c9e6e44ff805376b65ab40baa.png?resizew=174)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6fccbd53e86ef2c7e7c961395c143ab.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2234efe0c58d9b932223bb04a50e6909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db94ea06ef27a92107d4bb70a404a826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465f1fcfc7d30e0dc546542e0e6cb6fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c805160a02a5987be3ee993659d49df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
您最近一年使用:0次
11-12高二上·广东中山·期末
2 . 如图,四棱锥
的底面
为一直角梯形,其中
,
,
,
底面
,
是
的中点.
(1)试用
、
、
表示
,并判断直线
与平面
的位置关系;
(2)若
平面
,求异面直线
与
所成角的余弦值.
![](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/1a2fc51de957401a6193689497e6014d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4ab7e657f01bdfa235f8c4d6681d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03a2e08d03cd8a5ed485781ffb5d1e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
(1)试用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd98a891fa65f2fc6688001b03185d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68f654198c1e01d97f1378b35d7c68ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f75fc81977aee721525b4c5625f5a097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662698361c6b3ddaf0c28a3c87be53e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2011/5/14/1570198916456448/1570198921814016/STEM/4418d519-0719-4bce-a8b9-c916af9c99e2.png?resizew=193)
您最近一年使用:0次
10-11高三下·江苏南京·期中
解题方法
3 . 如图所示,已知
是正方形,
平面
,
.
(1)求异面直线
与
所成的角;
(2)在线段
上是否存在一点
,使PC⊥平面ADE?若存在,确定E点的位置;若不存在,说明理由.
![](https://img.xkw.com/dksih/QBM/2011/5/4/1570137103917056/1570137109733376/STEM/76322609-c182-4ef7-84e7-a2e89a8a1ac1.png?resizew=185)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b610c9b9948d88eda8de0fb8d1cf972.png)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/2011/5/4/1570137103917056/1570137109733376/STEM/76322609-c182-4ef7-84e7-a2e89a8a1ac1.png?resizew=185)
您最近一年使用:0次
10-11高二下·四川成都·阶段练习
名校
4 . 已知平行六面体
中,各条棱长均为
,底面是正方形,且
,设
,
,
.
(1)用
,
,
表示
及求
;
(2)求异面直线
与
所成的角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b75db2f07d10b338ba48863b03c5b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87ee4aeefe466d8c0f860f10c21e162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f6d9983221f519dd94ecf8fafa9cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8666756c66fe78398b5109b5fab17d78.png)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c308ea87b699ee1dcb879a568899de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6361249877a88f60d4b3bb71ef7b5517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c71423ae367bc116c93dc3cf87777b9e.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
您最近一年使用:0次
2016-11-30更新
|
577次组卷
|
7卷引用:2010-2011年四川省成都市树德协进中学高二3月月考数学试卷