如图所示,在长方体
中,
,M为棱
上一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/18/006900f0-8437-4e72-a7f4-01bf0cc63ab0.png?resizew=146)
(1)若
,求异面直线
和
所成角的正切值;
(2)若
,求证
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95c209af25368915c968758db1d7a90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/18/006900f0-8437-4e72-a7f4-01bf0cc63ab0.png?resizew=146)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01682fb5caa815057b2baf9297fbaab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b6f9e8af1bf09462f47c458a5abd15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7767d492158189b23af332a8016ed37d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adfc67f86e81cdd466230531ac658016.png)
21-22高二下·上海浦东新·期末 查看更多[5]
上海市上海中学东校2021-2022学年高二下学期期末数学试题(已下线)10.3 直线与平面垂直(第3课时)(已下线)第10章 空间直线与平面(A卷·知识通关练)-【单元测试】2022-2023学年高二数学分层训练AB卷(沪教版2020必修第三册)上海市华东师范大学第一附属中学2022-2023学年高二上学期10月月考数学试题(已下线)10.3 直线与平面所成的角 (第4课时)(作业)(夯实基础+能力提升)-【教材配套课件+作业】2022-2023学年高二数学精品教学课件(沪教版2020必修第三册)
更新时间:2022-06-28 10:45:55
|
相似题推荐
解答题-证明题
|
适中
(0.65)
解题方法
【推荐1】如图,在四棱锥
中,侧棱
平面
,底面四边形
是矩形,
,点
、
分别为棱
、
的中点,点
在棱
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/feb0307f-0b41-42a8-8cf5-9a37f9538ba6.png?resizew=175)
(1)若
,求证:直线
平面
;
(2)若
,从下面①②两个条件中选取一个作为已知,证明另外一个成立.
①平面
与平面
的交线为直线
,
与直线
成角的余弦值为
;
②二面角
的余弦值为
.
注:若选择不同的组合分别作答,则按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/888d60eea4792374fda946b0a7b2831c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/feb0307f-0b41-42a8-8cf5-9a37f9538ba6.png?resizew=175)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10d00f6d7d9019f8b964bd4e19d629a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982d01f052709b72afeaf1015fc7acc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149596fee6ed1e2d19fd8dadc14a8baf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
①平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.png)
②二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f1b90a3031fcd75754365a32b65a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f1145c162038df3c7184d9201c628e.png)
注:若选择不同的组合分别作答,则按第一个解答计分.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】矩形ABCD,PD
平面ABCD,若PB=2,PB与平面PCD所成的角为
,PB与平面ABD成
,求:
![](https://img.xkw.com/dksih/QBM/2021/3/12/2676438710001664/2683962777108480/STEM/357275f3ca5a48b1a4ba117939a0fb9f.png?resizew=192)
(1)CD的长;
(2)求PB与CD所成的角
(3)求二面角C-PB-D的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://img.xkw.com/dksih/QBM/2021/3/12/2676438710001664/2683962777108480/STEM/357275f3ca5a48b1a4ba117939a0fb9f.png?resizew=192)
(1)CD的长;
(2)求PB与CD所成的角
(3)求二面角C-PB-D的余弦值.
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
解题方法
【推荐1】如图①所示,在平面多边形
中,四边形
是边长为2的正方形,四边形
为等腰梯形,
为
的中点,且
.现将梯形
沿
折起,使平面
平面
,如图②所示.
![](https://img.xkw.com/dksih/QBM/2021/9/22/2813710075895808/2814870736216064/STEM/b341e876-caec-424f-9f11-43063ecc92f3.png?resizew=466)
(1)求证:
平面
;
(2)求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd37b0f4e9157e5bca8e4b72a691e6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369eb8ad56da7dc1cdb7c43762be4bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d5a164bf56f8fb92527ad78bc10ccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037638858d22572b1db5112cd4c8bff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d5a164bf56f8fb92527ad78bc10ccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5470335edde48868aa7243ed2b67170b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369eb8ad56da7dc1cdb7c43762be4bee.png)
![](https://img.xkw.com/dksih/QBM/2021/9/22/2813710075895808/2814870736216064/STEM/b341e876-caec-424f-9f11-43063ecc92f3.png?resizew=466)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d0df73a49d4348a5c1e3aaa149cc8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/603c7e98deecdba0cf3773757a9b8304.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,三棱柱
中,
,
,
平面ABC,
,
,D,E分别是AC,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/a12698a1-18b7-4bed-a8a0-6291cd97a2e1.png?resizew=216)
(Ⅰ)证明:
平面
;
(Ⅱ)求DE与平面
夹角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab3d85e2d44f7d7adb8a5c16c9250b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb85d81ce486e95389933930575fbae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4560fa4ad459b58b723c74bd24e51ebf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e96d4784dafa2d38f62a0f13a828cc40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/a12698a1-18b7-4bed-a8a0-6291cd97a2e1.png?resizew=216)
(Ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b7903de4be7d5dc1175cfbf6e8da9f.png)
(Ⅱ)求DE与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113c87d7b997847259f17ee8576ee44c.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐3】如图,在三棱柱
中,
平面ABC,D,E,F分别为
,AC,
的中点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/18/10aa192c-2b71-4d70-a7bf-16c280aa14f1.png?resizew=169)
(1)求证:AC⊥平面BEF;
(2)求点D与平面
的距离;
(3)求二面角
的正弦值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8bfe2553e852df73185d017c0a62fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1efa2b0018617bd579875185dafca39a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9d5815dc775d5a5810fff0b016a8d5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/18/10aa192c-2b71-4d70-a7bf-16c280aa14f1.png?resizew=169)
(1)求证:AC⊥平面BEF;
(2)求点D与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba99277e38f8d9f817a9d7db8198219.png)
(3)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e59b1f7689bff6644bfdeb9e36feb163.png)
您最近一年使用:0次