名校
1 . 如图,在四棱锥
中,底面
为矩形,
平面
,
,点
在棱
上,且
.
;
(2)若
,求二面角
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/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec58f4dedc26f3da0b2998e6418a879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5405438dc935b2530eb3e9990c727ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e403844f3bf87b4ebcdc4d28bbb04d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c9370f39106158d21c44ba4dde6f76.png)
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4卷引用:云南省楚雄市东兴中学2024届高三上学期12月月考数学试题
名校
解题方法
2 . 在棱长为1的正方体
中,点
满足
,其中
,
,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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9dd1458186cfbdf0701ba835572721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe62a251f3d6dfb60ba2a42bdda534c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e54e229cadeac6ea81a965c18cb55b5d.png)
A.若![]() ![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
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3卷引用:河南省九师联盟大联考2024届高三上学期12月月考数学试题
名校
解题方法
3 . 如图,四棱锥
的底面是边长为
的正方形,侧面
底面
,且
分别为棱
的中点.
(1)求证:
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d81cb4e40c23af346691d5489983252d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2107ed4c826d711675d3c5b23e1b2c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/eeb5fc1c-8179-4051-b200-f1231616e626.png?resizew=200)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50817ff14fb74ab1d509be07836699bd.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af29254fe60a392c249c5791279e9c8.png)
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3卷引用:重庆市黔江中学校2023-2024学年高二上学期12月月考数学试卷
4 . 中和殿是故宫外朝三大殿之一.位于紫禁城太和殿与保和殿之间,中和殿建筑的亮点是屋顶为单檐四角攒尖顶,体现天圆地方的理念,其屋顶部分的轮廓可近似看作一个正四棱锥.已知此正四棱锥的侧棱长为
,侧面与底面所成的锐二面角为
,这个角接近30°.若取
,则下列结论不正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/36990f09-2150-4328-bec2-98fbd35c5437.png?resizew=213)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662776401eca1b3cc581738e2f5ecf91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7b9d9bf0d5fc25c99170ab27fa4045.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/36990f09-2150-4328-bec2-98fbd35c5437.png?resizew=213)
A.正四棱锥的底面边长为24m | B.正四棱锥的高为![]() |
C.正四棱锥的体积为![]() | D.正四棱锥的侧面积为![]() |
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3卷引用:湖北省恩施州巴东县第一高级中学2023-2024学年高二上学期第三次月考数学试题
名校
解题方法
5 . 如图,在棱长为8的正方体
中,
是棱
上的一个动点,给出下列三个结论:①若
为
上的动点,则
的最小值为
;②
到平面
的距离的最大值为
;③
为
的中点,
为空间中一点,且
与平面
所成的角为
,
与平面
所成的角为
,则
在平面
上射影的轨迹长度为
,其中所有正确结论的序号是________ .
![](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/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a83c0b8db2205a6815811aa4ff5390f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41bbced6026f9512afa005638c6e5c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef3698ab627bc373f4a452481d7cad25.png)
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4卷引用:2024届河北省高三上学期大数据应用调研联合测评(III)数学试题
2024届河北省高三上学期大数据应用调研联合测评(III)数学试题河北省保定市部分重点高中2024届高三上学期12月期末数学试题(已下线)第3章 空间向量及其应用 单元综合检测(难点)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)(已下线)【一题多变】空间最值 向量求解
6 . 如图所示,两个不同的平面
,A、B两点在两平面的交线上,
,以AB为直径的圆
在平面
内,以AB为长轴,F、
为焦点的椭圆
在平面
内.过圆
上一点P向平面
作垂线,垂足为H,已知
,且
.若射线FH与椭圆相交于点Q,且
,在平面
内,以点H为圆心,半径为4的圆经过点Q,且圆H与直线AB相切.则平面
所成的角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55e53935c33d94f4bb102a25f3a24cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d00be47dcb89793f14a2fd10f4c522b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e55590555905eb4f57889bbd16e39a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbdb723f44e216e920395a08f4513ab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93989989b7c49a508b21d91de733078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d05b98b47a3eac81bb22afdc3d7a888.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc14778010a33f90902ff17b1ec0ac73.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3卷引用:湖北省云学名校联盟2023-2024学年高二上学期12月联考数学试题
名校
解题方法
7 . 已知正四棱锥
的
条棱长均相等,
为顶点
在底面内的射影,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
A.侧棱![]() ![]() ![]() |
B.侧面![]() ![]() ![]() |
C.设![]() ![]() ![]() ![]() |
D.设![]() ![]() ![]() ![]() |
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解题方法
8 . 在正方体
中,下列结论正确的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.![]() | B.![]() ![]() |
C.直线![]() ![]() ![]() | D.二面角![]() ![]() |
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2卷引用:山东省泰安市泰安一中2023-2024学年高二上学期12月月考数学试题
名校
解题方法
9 . 如图,在四棱锥
中,平面
平面
,
,
,
,
,
,
,
为棱
的中点.
与平面
所成线面角的大小(结果用反三角函数表示);
(2)求二面角
的余弦值;
(3)探究在线段
上是否存在点
,使得点
到平面
的距离是
?若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ad6a0124359e8b9f7649cf0bff51ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a0e5697eca3f5205cb7b343648240bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd8e727e4efc22b49649f71ae9c9d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a1d42384d18981c8dc53b4620a4403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b624742fe28db114e0554c6c87bff05c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96ee7262d0b5cbbade014e07e7373501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b270c5d399f46eb9048aeebf7a1fe174.png)
(3)探究在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c76e558109d9b8dd700c1a7f9cc73ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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名校
10 . 如图,菱形
的对角线
与
交于点
,
,
,点
,
分别在
,
上,
,
交
于点
,将
沿
折到
位置,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/19/38e6c4af-85c4-4c06-b5f4-614b3231e54d.png?resizew=228)
(1)证明:
平面
;
(2)求平面
与平面
的夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4af42b23810ede42d88067f5d86dbc5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e8bb1e2dbfd5c00e6a5432bb288265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/803cac9a91f6664dbe83e1d9fc4c8833.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/19/38e6c4af-85c4-4c06-b5f4-614b3231e54d.png?resizew=228)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fdfc11936fa2b2817d0ddedb1f80d8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b2482ff6179d31f535161beef463e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f921b462ee12ad5749ea45d75f609b7.png)
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6卷引用:四川省南充市南充高级中学2023-2024学年高二上学期第二次月考数学试题
四川省南充市南充高级中学2023-2024学年高二上学期第二次月考数学试题(已下线)2024年1月普通高等学校招生全国统一考试适应性测试(九省联考)数学试题变式题16-19(已下线)专题13 空间向量的应用10种常见考法归类(2)安徽省合肥一六八中学2024届高三“九省联考”考后适应性测试数学试题(一)(已下线)6.3 空间向量的应用 (4)(已下线)专题04 立体几何