名校
解题方法
1 . 已知椭圆
的左右焦点分别为F1,F2,该椭圆与y轴正半轴交于点M,且△MF1F2是边长为2的等边三角形.
(1)求椭圆的标准方程;
(2)过点F2任作一直线交椭圆于A,B两点,平面上有一动点P,设直线PA,PF2,PB的斜率分别为k1,k,k2,且满足k1+k2=2k,求动点P的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
(1)求椭圆的标准方程;
(2)过点F2任作一直线交椭圆于A,B两点,平面上有一动点P,设直线PA,PF2,PB的斜率分别为k1,k,k2,且满足k1+k2=2k,求动点P的轨迹方程.
您最近一年使用:0次
2020-03-16更新
|
204次组卷
|
3卷引用:黑龙江省大庆实验中学2019-2020学年高二上学期期末数学(理)试题
名校
解题方法
2 . 如图,四边形
与
均为菱形,
,且
.
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f84f169e50dc59d4f7a8e1e36f5c847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65814aeaa1a19d2e2d241c9699908129.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd3ed8807db1250667c70433e1b6f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f84f169e50dc59d4f7a8e1e36f5c847.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
您最近一年使用:0次
2020-11-05更新
|
4013次组卷
|
25卷引用:黑龙江省双鸭山市第一中学2021-2022学年高三上学期期末考试数学(理)试题
黑龙江省双鸭山市第一中学2021-2022学年高三上学期期末考试数学(理)试题【全国百强校】福建省三明市第一中学2018届高三模拟卷(一)数学(理)试题【校级联考】湖北省八校(鄂南高中.黄石二中.华师一附中.黄冈中学.荆州中学.孝感中学.襄阳四中.襄阳五中)2019届高三第二次联合考试数学(理科)试题陕西省宝鸡市宝鸡中学、西安三中等五校2020届高三上学期第一次联考数学(理)试题2020届湖南师大附中高三第六次月考数学(理)试题湖南省长沙市湖南师大附中2019-2020学年高三下学期第6次月考数学(理)试题湖南师大附中2019-2020学年高三下学期第六次月考理科数学试题(已下线)考点26 空间向量求空间角(讲解)-2021年高考数学复习一轮复习笔记四川省成都石室中学2020-2021学年高三上学期开学考试数学(理)试题江苏省南通市如皋中学2020-2021学年高三上学期阶段检测数学试题江苏省南通市如皋中学2020-2021学年高三上学期第一次月考数学试题江苏省南通市海安市2020-2021学年高三上学期阶段质量检测(一)数学试题河南省漯河市2020-2021学年高三上学期期末数学(理科)试题河南省漯河市2020-2021学年高三上学期期末数学(文科)试题四川省泸州市泸县第一中学2020-2021学年高三上学期一诊模拟考试理科数学试题江苏省宿迁市宿豫中学2020-2021学年高三上学期第四次调研考试数学试题甘肃省武威第六中学2020-2021学年高二上学期第二次段考数学(理科)试题江西省进贤县第一中学2021届高三教学质量检测数学试题(已下线)专题10 立体几何线面位置关系及空间角的计算 第一篇 热点、难点突破篇(练)-2021年高考数学二轮复习讲练测(浙江专用)广西普通高校2022届高三9月摸底考试数学(理) 试题重庆市凤鸣山中学2021-2022学年高二上学期(期中)半期数学试题广西贵港市江南中学2021-2022学年高二12月月考数学(理)试题(已下线)专题31 空间中直线、平面垂直位置关系的证明方法-学会解题之高三数学万能解题模板【2022版】广东省佛山市南海区南海中学2021-2022学年高二下学期第二次大测数学试题云南省曲靖市第二中学学联体2021-2022学年高二下学期第六次考试数学试题
名校
解题方法
3 . 如图所示在四棱锥
中,下底面
为正方形,平面
平面
,
为以
为斜边的等腰直角三角形,
,若点
是线段
上的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/7ed65d25-855a-49b6-89f1-50f8df43c01d.png?resizew=159)
(1)证明
平面
.
(2)求二面角
的平面角的余弦值.
![](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/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e2903ff33266528a7902ad51cf8d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/7ed65d25-855a-49b6-89f1-50f8df43c01d.png?resizew=159)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa69a2247ad4d5231aa361349b12f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca48c18021e7be4bbb3e95576e1c1b5f.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5102c216393e133fa25dba98cd78535.png)
您最近一年使用:0次
2020-03-10更新
|
240次组卷
|
3卷引用:黑龙江省大庆实验中学2019-2020学年高二上学期期末数学(理)试题
名校
解题方法
4 . 已知抛物线
上一点
到焦点
的距离
.
(1)求抛物线的标准方程;
(2)过点
的直线交抛物线与
,
两点,在
轴上是否存在定点
(异于点
),使得
,如果存在,请求出定点
的坐标,如果不存在请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21be4ca5919e23d17c902a3b09b0f0bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f94f47c9903f12d8572e01ca9ccbff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c8e332f03f6eff38723d64dd0d17e6e.png)
(1)求抛物线的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bea755323018aaf68efa00b217bbc4d.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207e77dfff8dc0b75e3d74c1c71b01fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2020-03-10更新
|
234次组卷
|
2卷引用:黑龙江省大庆实验中学2019-2020学年高二上学期期末数学(理)试题
名校
解题方法
5 . 已知椭圆
的上顶点为A,右焦点为F,O是坐标原点,
是等腰直角三角形,且周长为
.
(1)求椭圆的方程;
(2)若直线l与AF垂直,且交椭圆于B,C两点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31efdfd0542f99720fb380244264085b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eafa8e628e4995e60cc3400028e900b6.png)
(1)求椭圆的方程;
(2)若直线l与AF垂直,且交椭圆于B,C两点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
您最近一年使用:0次
2020-03-09更新
|
455次组卷
|
3卷引用:2020届黑龙江省哈尔滨市第九中学高三上学期期末考试数学(文科)试题
名校
解题方法
6 . 如图,曲线
是以原点
为中心、
,
为焦点的椭圆的一部分,曲线
是以
为顶点、
为焦点的抛物线的一部分,
是曲线
和
的交点且
为钝角,若
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/a48e2c9e-8025-4c53-96ef-be6b70a35dcc.png?resizew=185)
(1)求曲线
和
的方程;
(2)过
作一条与
轴不垂直的直线,分别与曲线
,
依次交于
,
,
,
四点,若
为
中点,
为
中点,问
是否为定值?若是,求出定值;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b6aed841835686697e79d1a63d15801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2171474a6b2d0190ab020239f3a34ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/574720fedc4e3dd05b6c7b0f32c90267.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/a48e2c9e-8025-4c53-96ef-be6b70a35dcc.png?resizew=185)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a2a7f4740ad82e5b789c4d2f8fc57a.png)
您最近一年使用:0次
2020-06-27更新
|
497次组卷
|
6卷引用:【全国百强校】黑龙江省大庆铁人中学2018-2019学年高二上学期期末考试数学(理)试题
名校
解题方法
7 . 如图,四棱锥
中,
平面
,底面
是边长为2的正方形,
,
为
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/25/b6f336f1-5b43-465d-ba2d-9b76fedb885f.png?resizew=157)
(1)求证:
;
(2)求二面角
的正弦值.
![](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/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/25/b6f336f1-5b43-465d-ba2d-9b76fedb885f.png?resizew=157)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4486d52b6e410fd7b60428121d96cef.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/306681bd5aaa51e9c63ab3002e23dec5.png)
您最近一年使用:0次
2020-02-27更新
|
336次组卷
|
4卷引用:黑龙江省哈尔滨市第三十二中学2020-2021学年高三上学期期末考试理科数学试题
黑龙江省哈尔滨市第三十二中学2020-2021学年高三上学期期末考试理科数学试题2020届陕西省西安市高三年级第一次质量检测数学理科试题四川省泸州市泸县第五中学2020-2021学年高三上学期第一次月考数学(理)试题(已下线)专题09 法向量秒求-2021年高考数学二轮复习解题技巧汇总(新高考地区专用)
8 . 如图,在平面直角坐标系
中,已知椭圆
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
的离心率
左顶点为
,过点
作斜率为
的直线
交椭圆
于点
,交
轴于点
.
![](https://img.xkw.com/dksih/QBM/2021/1/19/2639503156412416/2640400470376448/STEM/fafc056f220448cd85dc4da905f98511.png?resizew=186)
(Ⅰ)求椭圆
的方程;
(Ⅱ)已知
为
的中点,是否存在定点
,对于任意的
都有
,若存在,求出点
的坐标;若不存在说明理由;
(III)若过
点作直线
的平行线交椭圆
于点
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f82eb4ba631d0f50d848aa6e576b379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382b9d41d7bf43f04c883ccad2cd893c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cff3875dff9b8bb825b22161b51cc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bcb166b53a49e393871bcb14a528792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/2021/1/19/2639503156412416/2640400470376448/STEM/fafc056f220448cd85dc4da905f98511.png?resizew=186)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bcb166b53a49e393871bcb14a528792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0297c11050f2e39f82bb2cdf810d4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(III)若过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f96f930214ada24a67a1877ded973076.png)
您最近一年使用:0次
2021-01-20更新
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811次组卷
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9卷引用:黑龙江省大庆第一中学2017-2018学年高二上学期期末(第四次月考)考试数学(文)试题
黑龙江省大庆第一中学2017-2018学年高二上学期期末(第四次月考)考试数学(文)试题江苏省无锡市江阴四校2017-2018学年高二上学期期中考试数学试题2016届上海市高考压轴数学试题2018届湖南省衡阳市第八中学高三(实验班)第一次模拟数学(文)试题江苏省无锡市江阴市四校2020-2021学年高二上学期期中联考数学试题天津市滨海新区2020-2021学年高二上学期期末数学试题新疆喀什区第二中学2020-2021学年高二上学期期末考试数学(理)试题(已下线)专题25 椭圆(解答题)-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)(已下线)上海市徐汇中学2023-2024学年高三上学期期中考试数学试题变式题16-21
名校
9 . 已知椭圆方程为
.
(1)设椭圆的左右焦点分别为
、
,点
在椭圆上运动,求
的值;
(2)设直线
和圆
相切,和椭圆交于
、
两点,
为原点,线段
、
分别和圆
交于
、
两点,设
、
的面积分别为
、
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c03c6b8d7418edf20f474389971352.png)
(1)设椭圆的左右焦点分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eba1465d885dfaa659828849c76e216.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d61985901c2bc698d72ac88f4e1eb65.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/1dde8112e8eb968fd042418dd632759e.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/1d61985901c2bc698d72ac88f4e1eb65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd2981bf2261343f905ec1b5355a3c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4459eaa92f139d29880307b21e9b7611.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
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2020-01-30更新
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1195次组卷
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5卷引用:2020届黑龙江省牡丹江市爱民区第一高级中学高三上学期期末数学(理)试题
名校
10 . 在直三棱柱
中,
,
,
.
![](https://img.xkw.com/dksih/QBM/2020/1/30/2388075787395072/2388333493370880/STEM/b6e4d987d5ce4479904249a01efb50a2.png?resizew=205)
(1)求异面直线
与
所成角的正切值;
(2)求直线
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af260e0d98c95d1e092dc4c6d348e3ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829018a6ca0aff95d89e3f7cd943274e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fd676c41d2d644928f014b0fea4689.png)
![](https://img.xkw.com/dksih/QBM/2020/1/30/2388075787395072/2388333493370880/STEM/b6e4d987d5ce4479904249a01efb50a2.png?resizew=205)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
您最近一年使用:0次
2020-01-30更新
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1297次组卷
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4卷引用:2020届黑龙江省牡丹江市爱民区第一高级中学高三上学期期末数学(理)试题