1 . 四棱锥
中,底面
是边长为2的菱形,
.
,且
平面
,
,点
分别是线段
上的中点,
在
上.且
.
(Ⅰ)求证:
平面
;
(Ⅱ)求直线
与平面
的成角的正弦值;
(Ⅲ)请画出平面
与四棱锥的表面的交线,并写出作图的步骤.
![](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/78675cc442d678d71c6e831c0681d069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a23f01af749100e1888bba06268843db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8d245c35c56ded2ceb001c06a5d0ca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf33d73483c93f24cc6a1d76ef22ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c590dcc28f6baa70f29a2aa7604514a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93353d428928e676b883db20613da34.png)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/debdc6632a4877e5131d3da25cda8b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
(Ⅱ)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
(Ⅲ)请画出平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
您最近一年使用:0次
2018-06-16更新
|
1165次组卷
|
6卷引用:【全国百强校】北京市十一学校2018届高三三模数学(文理)试题
【全国百强校】北京市十一学校2018届高三三模数学(文理)试题(已下线)专题24 立体几何解答题最全归纳总结-2(已下线)专题08 立体几何解答题常考全归类(精讲精练)-1(已下线)重难点突破06 立体几何解答题最全归纳总结(九大题型)-2(已下线)专题15 立体几何解答题全归类(练习)北京市十一学校2024届高三下学期三模数学试题
名校
解题方法
2 . 长方体
中,
.
(2)记(1)中截面为
,若
与(1)中过
点的长方体的三个表面成二面角分别为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adddcf2b210fdeda3e7795e779bd86aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30816e31c2f392a4c975d539b458d89.png)
(2)记(1)中截面为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6a1f9f284b23e927ccffd063cb2d4ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dbbde2388c030a896c364e62675190d.png)
您最近一年使用:0次
解题方法
3 . (1)如图1,点A在直线l外,仅利用圆规和无刻度直尺,作直线
(保留作图痕迹,不需说明作图步骤).
(2)证明:一簇平行直线被椭圆所截弦的中点的轨迹是一条线段(不含端点);
(3)如图2是一个椭圆C,仅利用圆规和无刻度直尺,作出C的两个焦点,简要说明作图步骤(只说明作图步骤).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d63989923cff8efb6d67070be48794.png)
(2)证明:一簇平行直线被椭圆所截弦的中点的轨迹是一条线段(不含端点);
(3)如图2是一个椭圆C,仅利用圆规和无刻度直尺,作出C的两个焦点,简要说明作图步骤(只说明作图步骤).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/1cc29044-247d-4d10-a2ed-edcd5f41007d.png?resizew=222)
您最近一年使用:0次
4 . 己知椭圆
的左、右顶点分别为
,右焦点为F.动直线l过F且与E相交于A,B两点,定点G使得
.
(2)直线m过点G且垂直于x轴,点P在m上,证明:若
三点共线,则
三点共线:
(3)椭圆E如图所示,请用“尺规作图”的方法在图中作出点F、点G,保留作图痕迹,并写出作图步骤.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8868e2ba4401d727f1bcb1f5483b48f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd5f7f8631964382f4769c8fc020e6f7.png)
(2)直线m过点G且垂直于x轴,点P在m上,证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2956ffa0de0f9d11afe72119b221264a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7489e056192b00dc0973539cf36ab9c.png)
(3)椭圆E如图所示,请用“尺规作图”的方法在图中作出点F、点G,保留作图痕迹,并写出作图步骤.
您最近一年使用:0次
解题方法
5 . 如图,在多面体
中,四边形
为正方形,
,且
,M为
中点.
,使得平面
与平面
的平行(只需作图,无需证明)
(2)试确定(1)中的平面
与线段
的交点所在的位置;
(3)若
平面
,在线段
是否存在点P,使得二面角
的平面角为余弦值为
,若存在求出
的值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c7e72ef83184b96b12a51daf32c220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa340006e03fe33f2423dd9a34fa8b3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
(2)试确定(1)中的平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d2d217e9bcd059908f117dfc4d4259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b744948dc9f35c55bd4b41d4cbe89767.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/399e302b4df500446567f2b7f6d5d8d7.png)
您最近一年使用:0次
名校
解题方法
6 . 如图,在长方体
中,
,点E在
上,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1364213f546b37f8764ddcb59e36ae4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/7/b43983df-6e1a-4090-8752-f5aae30706ab.png?resizew=177)
(1)求直线
与
所成角
的余弦值.
(2)在图中画出面
与面
的交线并求出该交线在长方体内部的长度.
(3)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd33e6492dc76e5e844b3ad6c139a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1364213f546b37f8764ddcb59e36ae4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/7/b43983df-6e1a-4090-8752-f5aae30706ab.png?resizew=177)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dc61d5de97b5a40be925b278ae494c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)在图中画出面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea848cd2aa3a464618020475097949fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f233b375753611ffa7a93c2c12ef5e28.png)
(3)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f233b375753611ffa7a93c2c12ef5e28.png)
您最近一年使用:0次
名校
7 . 已知抛物线
(p为常数,
).
与H只有一个公共点,求k;
(2)贝塞尔曲线是计算机图形学和相关领域中重要的参数曲线.法国数学象卡斯特利奥对贝塞尔曲线进行了图形化应用的测试,提出了De Casteljau算法:已知三个定点,根据对应的比例,使用递推画法,可以画出抛物线.反之,已知抛物线上三点的切线,也有相应成比例的结论.如图,A,B,C是H上不同的三点,过三点的三条切线分别两两交于点D,E,F,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a495efcffea9b45b6901941163bc4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f82accad6edb09040f343941ed14a2a.png)
(2)贝塞尔曲线是计算机图形学和相关领域中重要的参数曲线.法国数学象卡斯特利奥对贝塞尔曲线进行了图形化应用的测试,提出了De Casteljau算法:已知三个定点,根据对应的比例,使用递推画法,可以画出抛物线.反之,已知抛物线上三点的切线,也有相应成比例的结论.如图,A,B,C是H上不同的三点,过三点的三条切线分别两两交于点D,E,F,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a96cc64535a00a0ef8050d4f8ed7114.png)
您最近一年使用:0次
2023-03-23更新
|
1552次组卷
|
4卷引用:山东省济南市2023届高三下学期3月一模数学试题
山东省济南市2023届高三下学期3月一模数学试题(已下线)专题15圆锥曲线中的定点、定值、证明问题山东省昌乐二中2022-2023学年高三下学期二轮复习模拟(一)数学试题(已下线)考点15 直线与圆锥曲线相切问题 2024届高考数学考点总动员
解题方法
8 . 若动点
到定点
与定直线
的距离之和为4.
(1)求点
的轨迹方程,并画出方程的曲线草图.
(2)记(1)得到的轨迹为曲线
,若曲线
上恰有三对不同的点关于点
对称,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed73ff28a15536bdcd758ce2a7f73f2f.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)记(1)得到的轨迹为曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7c35033c2cdc893753ede3282d02ed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
9 . 若动点
到定点
与定直线
的距离之和为4.
(1)求点
的轨迹方程,并画出方程的曲线草图;
(2)记(1)得到的轨迹为曲线
,问曲线
上关于点
(
)对称的不同点有几对?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9112bdf193400278a319ebd904d0f73e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed73ff28a15536bdcd758ce2a7f73f2f.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)记(1)得到的轨迹为曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b14eb97889ab100453d55cdd589883d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995ec593baa4ef50b6d87c78380953d7.png)
您最近一年使用:0次
10 . 若动点
到定点
与定直线
的距离之和为
.
(1)求点
的轨迹方程,并在答题卡所示位置画出方程的曲线草图;
(2)(理)记(1)得到的轨迹为曲线
,问曲线
上关于点
对称的不同点有几对?请说明理由.
(3)(文)记(1)得到的轨迹为曲线
,若曲线
上恰有三对不同的点关于点
对称,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a2b8b43e1fe82fc439d145e91b860c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed73ff28a15536bdcd758ce2a7f73f2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)(理)记(1)得到的轨迹为曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ef6f3cd59f3e0fe31f160d6a851d0f.png)
(3)(文)记(1)得到的轨迹为曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ef6f3cd59f3e0fe31f160d6a851d0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次