名校
解题方法
1 . 已知斜三棱柱
中,底面
是等腰直角三角形,
,
,
与
、
都成
角,则异面直线
与
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/462b1c65b1b233ab98a90c164c0968c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-04-20更新
|
1016次组卷
|
4卷引用:山西省大同市第三中学校2024届高三上学期十月月考数学试题
名校
2 . 如图,在直棱柱
中,底面
为菱形,
,
,
与
相交于点
,
与
相交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/04ac8e79-a783-4f54-80e4-b07bacad089d.png?resizew=194)
(1)求证:
平面
;
(2)求直线
与平面
所成的角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a05e0ab55e325fb3b85fc8ca9c27c76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fd676c41d2d644928f014b0fea4689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/04ac8e79-a783-4f54-80e4-b07bacad089d.png?resizew=194)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4cd2b33bd983a9ed6575b9de04a46a.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df46c1b56807d598bbb932a01b0f7223.png)
您最近一年使用:0次
2020-04-20更新
|
480次组卷
|
3卷引用:2020届黑龙江省齐齐哈尔高三二模理科数学试题
解题方法
3 . 在所有棱长都相等的直三棱柱
中,
、
分别为棱
、
的中点,则直线
与平面
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0278f9809e118b80c9946d9b9ae40c83.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-04-17更新
|
913次组卷
|
6卷引用:2020届金太阳高三4月联考数学(理)试题
2020届金太阳高三4月联考数学(理)试题2020届河南广东等省高三普通高等学校招生全国统一考试4月联考数学(理)试题(已下线)【新教材精创】1.2.3+直线与平面的夹角(1)B提高练-人教B版高中数学选择性必修第一册(已下线)第一章 空间向量与立体几何(培优必刷卷)-2021-2022学年高二数学上学期同步课堂单元测试(人教A版2019选择性必修第一册)安徽省滁州市定远县育才学校2022-2023学年高二上学期第一次月考数学试题(已下线)第一章 空间向量与立体几何(易错必刷40题14种题型专项训练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)
解题方法
4 . 如图,已知圆锥的顶点为
,底面圆心为
,半径为4;
![](https://img.xkw.com/dksih/QBM/2020/12/2/2605483550752768/2609771048517632/STEM/12ad2b14a6c7464e8543985f2b61602e.png?resizew=151)
(1)若圆锥的侧面积为
,求圆锥的体积.
(2)若
,
,
是底面半径,且
,
为线段
的中点,求异面直线
与
所成的角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/2020/12/2/2605483550752768/2609771048517632/STEM/12ad2b14a6c7464e8543985f2b61602e.png?resizew=151)
(1)若圆锥的侧面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e42562b8980589bb90419100043500.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0819cd060cdfb72896f379db29a4724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
您最近一年使用:0次
名校
解题方法
5 . 直三棱柱
中,
,
,已知P是
的中点,Q是AC的中点,则异面直线
与PC所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc74956a4f7adc5e7b057d2a0c6f5a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab3d7e6077fe7ec725a5637c8bdfee1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-04-13更新
|
188次组卷
|
2卷引用:山西省大同市第一中学2019-2020学年高三下学期2月网上月考(开学)数学(文)试题
名校
6 . 如图,在四棱锥
中,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/42121f7f-e3fc-44ed-90c5-8c7b1a8950d9.png?resizew=189)
(1)证明:
平面
;
(2)若
,
,
为线段
上一点,且
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4117625867a74cd022584500c76deca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d028a62fea771beb2d18f0c1bf856c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca5087d262b2830846cb55fb32fbe5a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/42121f7f-e3fc-44ed-90c5-8c7b1a8950d9.png?resizew=189)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0edb1508fc95765f3bb316bcb5252d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a98c8e36238ad90378e724466fcb6023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddd08b502bf0d11788300e7d6ba2fc66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acaf100147efc6dc6feb362be71a7132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
您最近一年使用:0次
2020-03-25更新
|
462次组卷
|
3卷引用:2020届湖北省宜昌市高三下学期3月线上统一调研测试数学(理)试题
7 . 如图,三棱柱
所有的棱长为
,
,
是棱
的中点.
![](https://img.xkw.com/dksih/QBM/2020/3/24/2426670003183616/2427257317310464/STEM/8203fbe9e58a4d16aa88845c3ec3a894.png?resizew=266)
(1)求证:
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/340c16426c497f63c8d239e3b478700c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2020/3/24/2426670003183616/2427257317310464/STEM/8203fbe9e58a4d16aa88845c3ec3a894.png?resizew=266)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f36f074d1dc1054c679236ec70dcaf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
您最近一年使用:0次
名校
解题方法
8 . 如图,正三棱柱
中,各棱长均等于
,
为线段
上的动点,则平面
与平面
所成的锐二面角余弦值的最大值为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b91c857bbe3c4f0f08dd2a4124a96e.png)
![](https://img.xkw.com/dksih/QBM/2020/2/15/2399576145403904/2425602133204992/STEM/02a077eeb9174e75866b86b955353f8a.png?resizew=182)
您最近一年使用:0次
2020-03-23更新
|
714次组卷
|
5卷引用:福建省福州华侨中学2022届高三上学期期中考数学试题
福建省福州华侨中学2022届高三上学期期中考数学试题(已下线)FHsx1225yl162浙江省绍兴市诸暨市2019-2020学年高二上学期期末数学试题(已下线)1.4.3+运用立体几何中的向量方法解决距离与角度问题(重点练)-2020-2021学年高二数学十分钟同步课堂专练(人教A版选择性必修第一册)(已下线)3.4.3 运用立体几何中的向量方法解决距离与角度问题(重点练)-2020-2021学年高二数学(理)十分钟同步课堂专练(人教A版选修2-1)
名校
9 . 如图,四棱锥P﹣ABCD的底面是梯形.BC∥AD,AB=BC=CD=1,AD=2,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8f9efada515904b015baa8e2fc1b8c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/bd80ff47-3d74-46af-9200-fe32847a61d5.png?resizew=177)
(Ⅰ)证明;AC⊥BP;
(Ⅱ)求直线AD与平面APC所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96ac79190e1b93c16b5d00a1b516281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8f9efada515904b015baa8e2fc1b8c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/bd80ff47-3d74-46af-9200-fe32847a61d5.png?resizew=177)
(Ⅰ)证明;AC⊥BP;
(Ⅱ)求直线AD与平面APC所成角的正弦值.
您最近一年使用:0次
2020-03-22更新
|
930次组卷
|
7卷引用:2020届浙江省杭州二中高三上学期返校考试数学试题
2020届浙江省杭州二中高三上学期返校考试数学试题2020届浙江省温州中学高三下学期3月高考模拟测试数学试题福建省三明市2019-2020学年普通高中高三毕业班质量检查A卷(5月联考)理科数学试题福建省三明市2019-2020学年高三(5月份)高考(理科)数学模拟试题(已下线)考点23 运用空间向量解决立体几何问题-2021年高考数学三年真题与两年模拟考点分类解读(新高考地区专用)(已下线)专题19 立体几何综合-2020年高考数学母题题源全揭秘(浙江专版)安徽省滁州市定远县第二中学2022届高三下学期高考模拟检测理科数学试题
名校
10 . 已知四棱柱
中,底面
为菱形,
,
为
中点,
在平面
上的投影
为直线
与
的交点.
;
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe6be7370058c9b0b4dd6fe7d999dfa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d98c843d3cc814335f8d4796bf131d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6b00aa8eb26bee3d039144c2c8cfaf.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7330a47ee62725071b8df19e0f748c.png)
您最近一年使用:0次
2020-03-16更新
|
888次组卷
|
3卷引用:湖南省长沙市长郡中学2020-2021学年高三上学期月考(二)数学试题