名校
解题方法
1 . 如图,在棱长为2的正方体
中,
,
分别是棱
,
的中点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
A.![]() ![]() ![]() ![]() | B.![]() |
C.直线![]() ![]() ![]() | D.点![]() ![]() |
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2卷引用:宁夏青铜峡市宁朔中学2023-2024学年高二下学期开学考试数学试题
名校
2 . 在三棱台
中,
平面
,
,
,
,
为
中点.
平面
;
(2)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee6a2c9d3843855bf89516bdd6ad5de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45224f7eac9d0cef64bf28d93e7721a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1604adab63e6350177d8130123dca0f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9260ee90b4107dcdc5b2b0937c40e8c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b668b5c01e0b1a529cc4e3efb2e9057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78c552b00e3c50158e7f2ac5d6591d72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
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3卷引用:宁夏青铜峡市宁朔中学2023-2024学年高二下学期开学考试数学试题
名校
3 . 如图,在直三棱柱
中,
分别为
的中点.![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
平面
;
(2)若点
是棱
上一点,且直线
与平面
所成角的正弦值为
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9566510295543eeac41ec809a3df639.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4dfea6353fc25e88535e865a4982cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
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2024-01-19更新
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4卷引用:宁夏吴忠市2024届高三下学期高考模拟联考试卷(二)理科数学试题
宁夏吴忠市2024届高三下学期高考模拟联考试卷(二)理科数学试题北京市东城区2024届高三上学期期末统一检测数学试题(已下线)广东省深圳中学2023-2024学年高三寒假开学适用性考试数学试题北京市门头沟区大峪中学2023-2024学年高二下学期开学考试数学试题
名校
解题方法
4 . 在直角梯形
中,
,
,
,如图(1).把
沿
翻折,使得平面
平面
.
;
(2)在线段BC上是否存在点N,使得AN与平面ACD所成角为60°?若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cbd8599cee48d867a73477d60b1f62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf6dc837ae85207789b94d109c5c2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
(2)在线段BC上是否存在点N,使得AN与平面ACD所成角为60°?若存在,求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48732e80ec3c3b6de906d598c69840d5.png)
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2024-03-16更新
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2551次组卷
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18卷引用:宁夏回族自治区吴忠市吴忠中学2023-2024学年高二上学期11月期中考试数学试题
宁夏回族自治区吴忠市吴忠中学2023-2024学年高二上学期11月期中考试数学试题江西省宜春市宜丰县宜丰中学2023-2024学年高二上学期12月月考数学试题福建省泉州市第七中学2023-2024学年高二上学期期中考试数学试卷江西省赣州市大余县部分学校联考2023-2024学年高二上学期12月月考数学试题广东省佛山市南海区第一中学2023-2024高二上学期第三次大测数学试卷河北省石家庄市第二中学2024届高三上学期第一次模拟测试数学试题广东省中山市中山纪念中学2024届高三上学期第三次模拟测试数学试题四川省成都市郫都区2024届高三上学期阶段检测(三)理科数学试卷(已下线)(新高考新结构)2024年高考数学模拟卷(一)(已下线)微考点5-1 新高考新试卷结构立体几何解答题中的斜体建坐标系问题(已下线)重难点12 立体几何必考经典解答题全归类【九大题型】(已下线)第1套 全真模拟篇复盘卷 【模块三】(已下线)信息必刷卷01四川省成都市第七中学2024届高三下学期4月分推考试数学(理科)试卷(已下线)模块3 第3套 复盘卷四川省成都市石室阳安学校2023-2024学年高三下学期4月月考数学(理)试题(已下线)模块4 二模重组卷 第2套 复盘卷四川省泸州高级中学校2024届高三下学期第二次月考理科数学试题
名校
解题方法
5 . 如图,正三角形
与菱形
所在的平面互相垂直,
,
,
是
的中点.
到平面
的距离;
(2)已知点
在线段
上,且直线
与平面
所成的角为
,求出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05740f0c6071846227dc0ec177ad15e8.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca48c18021e7be4bbb3e95576e1c1b5f.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933736986ccafe47864a744d4c8e19a9.png)
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2023-10-08更新
|
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9卷引用:宁夏青铜峡市宁朔中学2023-2024学年高二上学期期中考试数学试题
宁夏青铜峡市宁朔中学2023-2024学年高二上学期期中考试数学试题山东省泰安市泰山区泰安第一中学2023-2024学年高二上学期10月月考数学试题广东省开平市忠源纪念中学2023-2024学年高二上学期期中数学试题山东省淄博市临淄中学2023-2024学年高二上学期期中考试数学试题海南省儋州市洋浦中学2023-2024学年高二上学期期中数学试题(B卷)广东省潮州市高级中学2023-2024学年高二上学期级第二次阶段考试试卷山东省威海市威海大光华学校2023-2024学年高二上学期11月月考数学试题湖南省浏阳市2023-2024学年高二上学期期末质量监测数学试卷辽宁省本溪市第一中学2023-2024学年高二下学期寒假验收考试数学试题
名校
6 . 如图,三棱锥P-ABC中,PA⊥平面ABC,AB⊥BC.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/e9b10cbb-d59b-4578-a099-da44403bea5e.png?resizew=136)
(1)证明:平面PBC⊥平面PAB;
(2)若AB=BC=1,PA=2,M为棱PC的中点,求平面MAB与平面PAB夹角的余弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/e9b10cbb-d59b-4578-a099-da44403bea5e.png?resizew=136)
(1)证明:平面PBC⊥平面PAB;
(2)若AB=BC=1,PA=2,M为棱PC的中点,求平面MAB与平面PAB夹角的余弦值.
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2卷引用:宁夏青铜峡市宁朔中学2022-2023学年高二下学期3月月考数学(理)试题
7 . 如图,四棱锥
中,四边形
是矩形,
平面
,E是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/30/61d58522-2785-4a91-990b-4133d5767756.png?resizew=253)
(1)若
的中点是M,求证:
平面
;
(2)若
,求平面
与平面
所成二面角的正弦值.
![](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/cd654221ab95fe241d9e0202443f2609.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/30/61d58522-2785-4a91-990b-4133d5767756.png?resizew=253)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd0285afe567ca0b32f0ccafc30167cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf7a6136d00ddeac84741ba77fea340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9068f29d671d76d1e95ba3a4eaff5b96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
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2022-06-29更新
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4卷引用:宁夏吴忠市2023届高三下学期一轮联考数学(理)试题
宁夏吴忠市2023届高三下学期一轮联考数学(理)试题广东省广州市天河区2021-2022学年高二下学期期末数学试题广东省广州市天河区2024届高三上学期普通高中毕业班综合测试(一)数学试题(已下线)广东省广州市中山大学附属中学2024届高三上学期期中数学试题变式题19-22
8 . 如图所示的五面体
中,平面
平面
,四边形
为正方形,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/5/25/2987083933409280/2988426232258560/STEM/6e30baf8-b812-4688-92aa-86dbc3aab745.png?resizew=166)
(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/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5a68a008a22d5a8cea5fe8dcf31e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abdc667b6f1df12a0f178044a0c3e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4e4a162f12d12a082b8d8fdd1aeab9.png)
![](https://img.xkw.com/dksih/QBM/2022/5/25/2987083933409280/2988426232258560/STEM/6e30baf8-b812-4688-92aa-86dbc3aab745.png?resizew=166)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
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2022-05-27更新
|
353次组卷
|
3卷引用:宁夏吴忠市2024届高三下学期高考模拟联考(一)理科数学试题
名校
解题方法
9 . 如图,在直三棱柱
中,
,
,
,
,则
与
所成角的余弦值为( )
![](https://img.xkw.com/dksih/QBM/2022/5/10/2976423041024000/2981398049636352/STEM/a054e95b-1dc2-4fd6-b44e-32a797acb65e.png?resizew=175)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c122ca7141c43c15c783968f5f0dbc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://img.xkw.com/dksih/QBM/2022/5/10/2976423041024000/2981398049636352/STEM/a054e95b-1dc2-4fd6-b44e-32a797acb65e.png?resizew=175)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近半年使用:0次
2022-05-17更新
|
627次组卷
|
3卷引用:宁夏回族自治区吴忠市吴忠中学2023-2024学年高二上学期11月期中考试数学试题
宁夏回族自治区吴忠市吴忠中学2023-2024学年高二上学期11月期中考试数学试题新疆乌苏市第一中学2021-2022学年高二下学期期中考试数学(理)试题(已下线)第06讲 向量法求空间角(含探索性问题) (高频考点—精讲)-1
名校
10 . 如图,在四棱锥
中,
底面
.在底面
中,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/5/12/2977855451512832/2978660951293952/STEM/6a038fb8e1a04e3caef712b91266e216.png?resizew=210)
(1)求证:
平面
;
(2)若平面
与平面
的夹角等于
,求点B到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae1e04eeb4de72e5750dae77bcb6f88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4ab7e657f01bdfa235f8c4d6681d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/633bf2de732ae51fc06ef3d559915da0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://img.xkw.com/dksih/QBM/2022/5/12/2977855451512832/2978660951293952/STEM/6a038fb8e1a04e3caef712b91266e216.png?resizew=210)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近半年使用:0次
2022-05-13更新
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1225次组卷
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4卷引用:宁夏吴忠市吴忠中学2022届高三下学期第三次模拟测试数学(理)试题