1 . 如图所示, 四棱锥
中, 底面
是边长为
的正方形, 侧棱
底面
,且
是
的中点.
![](https://img.xkw.com/dksih/QBM/2016/11/9/1573134904565760/1573134910537728/STEM/eef7db0ed2dd4248b38d468d0a182b5c.png)
(1)证明:
平面
;
(2)求点
到面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6153163fecdf3f410411048428ccaef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551e4cd76a93de89ea2750160fe74923.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3de283b9f2d5538933d3768de8dccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://img.xkw.com/dksih/QBM/2016/11/9/1573134904565760/1573134910537728/STEM/eef7db0ed2dd4248b38d468d0a182b5c.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c839c518a50619f467cd23bbc7e1db6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532c7d9eb4015a630d0f2f5038991932.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532c7d9eb4015a630d0f2f5038991932.png)
您最近一年使用:0次
2 . 在三棱锥
中,底面
为直角三角形,
,
平面
.
![](https://img.xkw.com/dksih/QBM/2016/11/5/1573127334748160/1573127340834816/STEM/6ef35fc9c4674239be7de53d85c75b77.png)
(1)证明:
;
(2)若
为
的中点,且
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd35d0f4870f1a741ed46baa908019c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551e4cd76a93de89ea2750160fe74923.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/2016/11/5/1573127334748160/1573127340834816/STEM/6ef35fc9c4674239be7de53d85c75b77.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f64a2a63c04ee3fc8351c55623ec776.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424dfbd9917699a63a37c5ba729d85b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
3 . 如图,在四棱锥
中,
底面
,
,
与平面
所成角的正切值为
,
为等边三角形,
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/c82ce7c3757f43a197a4d3c09d6a36b0.png)
(1)求
;
(2)求点
到平面
的距离.
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/737ff72e9e7c412e8a9ecc2c10947873.png)
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/ce1c132c5c9c41cda49715b321fdd69c.png)
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/c646d69cb99b408898e5fdae681893f4.png)
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/109e4499226c42369e5b6462976d80bf.png)
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/f8099244cf484124b165026127d8bb5c.png)
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/c646d69cb99b408898e5fdae681893f4.png)
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/a3e033f64a264b40b042346fc396355a.png)
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/e540778b86c74259a04c1a50f33ebd5e.png)
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/37391ce42c3947fe876e3cb980ee0964.png)
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/11d753d2dbce484cb1a7768bfcb980d8.png)
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/f8099244cf484124b165026127d8bb5c.png)
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/c82ce7c3757f43a197a4d3c09d6a36b0.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/eb1bd14f7ba84fb594aeaeb950938c5e.png)
(2)求点
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/11d753d2dbce484cb1a7768bfcb980d8.png)
![](https://img.xkw.com/dksih/QBM/2016/11/4/1573124494622720/1573124500865024/STEM/4404542e43794bbd9f2881ef991a2f1a.png)
您最近一年使用:0次
4 . 已知圆
的圆心为原点
,且与直线
相切.
(1)求圆
的方程;
(2)过点
引圆
的两条切线
,切点为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45eaae310afe86d8dbdd9079328cf5c3.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0230ffbdc7054ffc2296bfd1ea11facf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
5 . 如图,在长方体
中,
,
为
的中点,
为
上的一点,
.
![](https://img.xkw.com/dksih/QBM/2016/7/5/1572890305806336/1572890312081408/STEM/574831cd63dd4f019633238429a0c488.png)
(1)证明:平面
平面
;
(2)求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2eb889e9db77d244aa894d8ef8c80d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd36dc8ec66dc395b3cc1686c279b4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ebbd866e455cf80ea669c9f56f792c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d86a0a3e867a448094f74a54a1fee64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2391c0e2fc44598610d519dacb778062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbb6bcbd5f553785ee2353615e0b387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc7137f033f531843494bc32d6cb7a6.png)
![](https://img.xkw.com/dksih/QBM/2016/7/5/1572890305806336/1572890312081408/STEM/574831cd63dd4f019633238429a0c488.png)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85eb81f4e6ae3367a81a4c4149e14813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94521a35accc1208003fbc5c27b1699f.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f705fc7f7ca2713e6deac8454e6db69c.png)
您最近一年使用:0次
2016-07-05更新
|
307次组卷
|
2卷引用:2016-2017学年河北定州中学高二上期7.8周练数学试卷