名校
解题方法
1 . 如图,在四棱锥
中,
平面
,底面
为菱形,
为
的中点.
平面
;
(2)若点
是棱
的中点,求证:
平面
.
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f70cf3f6c7acbf60d4a4ca0ce89619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6c2dad46a9052a4185a4f7b4ae8a2e.png)
您最近一年使用:0次
2023-12-01更新
|
758次组卷
|
13卷引用:甘肃省酒泉市实验中学2023-2024学年高二上学期学业水平合格性考试数学模拟试题(三)
甘肃省酒泉市实验中学2023-2024学年高二上学期学业水平合格性考试数学模拟试题(三)北京市第二十中学2022-2023学年高二上学期12月月考数学试题(已下线)8.6.2直线与平面垂直的判定定理(第1课时)(精练)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)8.6.2直线与平面垂直的判定定理(第1课时)(精讲)(1)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)第八章 立体几何初步(A卷·基础提升练)-【单元测试】2022-2023学年高一数学分层训练AB卷(人教A版2019必修第二册)宁夏石嘴山市平罗中学2023届高三第六次模拟考试数学(文)试题(已下线)高一下册数学期末模拟卷(二)【超级课堂】(已下线)模块五 专题3 期末全真拔高模拟3吉林省辽源市田家炳高级中学校2022-2023学年高一下学期6月月考数学试题山东省济宁市曲阜孔子高级中学2022-2023学年高一下学期6月月考数学试题云南省曲靖二中兴教中学2022-2023学年高二下学期第四次教学质量检测(6月)数学试题(已下线)第8章 立体几何初步 单元综合检测(重点)-《重难点题型·高分突破》(人教A版2019必修第二册)(已下线)专题训练:线线、线面、面面平行与垂直证明大题-同步题型分类归纳讲与练(人教A版2019必修第二册)
2 . 十七世纪至十八世纪的德国数学家莱布尼兹是世界上第一个提出二进制记数法的人,用二进制记数只需数字0和1,对于整数可理解为逢二进一,例如:自然数1在二进制中就表示为
,2表示为
,3表示为
,5表示为
,发现若
可表示为二进制表达式
,则
,其中
,
或
.
(1)记
,求证:
;
(2)记
为整数
的二进制表达式中的0的个数,如
,
.
(ⅰ)求
;
(ⅱ)求
(用数字作答).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afac8d5ff689800b23006bfb787f830e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75d883ba9da001d5bbdb4f9f27ef5d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084e9bad43a8ba23cfe1f348d16e1f8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a05a2ad4181e34f4155bdc8e9c6613ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209559aca6bf32705588b6a40e0b7320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60f4052daae3c3e9ad015e2179319f1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6c716342983f6ae1ffaf192994c4070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/489340c9a2d70c00bae13b7018cad448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca64ef9e0c3dd14e99d113dbbe973ace.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/864f7082fc29a1eb3a51d3548ee34f1d.png)
(1)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce2d56b82e70f24100e6966cc9a5b600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c303cf3774ce07269def2ffd0e77b739.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cdfd430e34aa63094df2b23088cfa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cbb3d9df6afb29bf9201fb32d425c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d37b93187edaea11bc4471f62aecfa2.png)
(ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b965e4215123ce1905dd9a4f77fba4.png)
(ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2bb483ec28b388bd875049a8bb6c1f.png)
您最近一年使用:0次
名校
解题方法
3 . 如图:在五面体
中,已知
平面
,
,且
,
.
平面
;
(2)求直线
与平面
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e8e59609f1c42d1aff0008ec23f31e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b52da73fed7ba981b1700a45a6faf27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/375d6e43403dbfa7cd708d8194e676ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5f0cfc1049f84a04c81bd213afb8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
您最近一年使用:0次
2023-10-11更新
|
667次组卷
|
4卷引用:甘肃省酒泉市瓜州县第一中学2024届高三上学期期末数学试题
4 . 已知数列
的前
项和为
,且
.
(1)求数列
的通项公式;
(2)设
,求数列
的前
项和
,并证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e7c1a9924023ce408b249a32dfd7fe0.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9e5fae74db000d84f1f9fffb38afeb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d76c3eb0a07a827877d7a4dc306211.png)
您最近一年使用:0次
5 . 如图,在四棱锥
中,底面
为等腰梯形,
,
,
平面
,
,点
为线段
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/1/a9f935db-30a7-4ee1-b8c9-ef0bdf23f907.png?resizew=156)
(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/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](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/c6e0b64d25ddd18454f88e40c45d7d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c83f8945042b9c8fb2fbdac9308d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c049bbf873a6af116712840484b98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defa5b53043ae802bb1af7d14374406d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/1/a9f935db-30a7-4ee1-b8c9-ef0bdf23f907.png?resizew=156)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5000fea066102e62cf2128ccbbd2b3e3.png)
您最近一年使用:0次
2023-07-31更新
|
549次组卷
|
2卷引用:甘肃省酒泉市2023届高三第三次诊断理科数学试题
解题方法
6 . (1)过点
的直线交抛物线
于点
,
,证明:以
为直径的圆过原点
;
(2)已知
的顶点
,
的坐标分别为
,
,顶点
在圆
上运动,求
的重心
的轨迹方程并指出该轨迹是什么曲线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65368687df4d7e3b9304e85ec4de354c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0f9f734c03d04c21edefa08e0acc1fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134c698e0cd1926b40bb19b5fe29e2b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
您最近一年使用:0次
名校
解题方法
7 . 已知函数
是定义在
上的奇函数,且
.
(1)确定函数
的解析式并判断
在
上的单调性(不必证明);
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c8d98ee11235b9ff6c47a5ab20b99c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8efb711f1840944cae7b1a237a04e43b.png)
(1)确定函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cee4b39726394517406e3020e322cce.png)
您最近一年使用:0次
2023-11-03更新
|
309次组卷
|
3卷引用:甘肃省酒泉市四校2023-2024学年高一上学期期中联考数学试题
8 . 已知函数
是定义在
上的函数,且
的图象经过
点.
(1)求
的表达式;
(2)用单调性定义证明函数
在
上为增函数;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab4d7524cdebd7ba7c68793cea6f9c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85be68bcfee53e08e9a14508b4a92527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)用单调性定义证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85be68bcfee53e08e9a14508b4a92527.png)
您最近一年使用:0次
9 . 如图,已知点
是正方形
所在平面外一点,
平面
,
,
、
、
分别是
、
、
的中点.
(1)求证:
平面
;
(2)求证:直线
平面
;
(3)求直线
与平面
所成的角.
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced3d3dd6af84fb052fc7281d707853e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/17/06b06484-08b8-415b-bf79-1e36d0ad0e80.png?resizew=156)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7592c4f01c8e06c7ee90df5b9413a9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14ddcfd8985d6ef923063a301e2bc5ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
您最近一年使用:0次
10 . 已知函数
.(
为自然对数的底数)
(1)若曲线
在点
处的切线方程;
(2)证明:当
时,
.(参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22cc958d654986d821222f069fdaf038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b40940b4fd4d0a4c2aa886bc70ec1c5e.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4921923069c4f38a0af1ff8637e35b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5167e4033a40ca097e142552dfb8210.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35b7cfcc147916ae7eeb5d557fea945e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f523bf60acb92d2fd8639bd753f347.png)
您最近一年使用:0次