名校
解题方法
1 . 已知椭圆
(a>0,b>0)的右焦点F在直线
上,A,B分别为C的左、右顶点,且
.
(1)求C的标准方程;
(2)过点
的直线l与C交于P,Q两点,线段PQ的中点为N,若直线AN的斜率为
,求直线l的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7690f62e0b3a59c3ff0c31fe4033de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f8f333303816ff66e3aa44bcf97268.png)
(1)求C的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb203d8908ffd00fc19e6d8b5f3eae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33adb74906403b0b00fcbd9fa691d8b.png)
您最近一年使用:0次
2023-05-24更新
|
625次组卷
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3卷引用:青海省海东市2023届高三第三次联考数学(文科)试题
解题方法
2 . (1)已知抛物线
的焦点为
,设过焦点
且倾斜角为
的直线
交抛物线于
两点,求线段
的长.
(2)已知
是双曲线C的两个焦点,P为C上一点,且
,求双曲线C的离心率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5422d30b6a57b62a12de8a2a978edb9.png)
您最近一年使用:0次
名校
解题方法
3 . 已知椭圆
的左、右焦点分别为
、
,过
的直线
交
于
、
两点(不同于左、右顶点),
的周长为
,且
在
上.
(1)求
的方程;
(2)若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.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/a3fb78c5f885034612c0e030b920143d.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c07ebcbfacda073208d483c58e8a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7305fdcc52036f7adab76dd8bb1a4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52caaf0a4e3fe82f24a1999e4698b7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2023-04-23更新
|
381次组卷
|
3卷引用:青海省玉树州2023届高三第三次联考数学文科试题
名校
解题方法
4 . 如图,在棱长为3的正方体
中,点
是棱
上的一点,且
,点
是棱
上的一点,且
.
与
所成角的余弦值;
(2)求直线
到平面
的距离.
![](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/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94352580073f69b5be36bde89a8d0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ecf5f0d1b309c95313aaa9bf52e1747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6261790c66cc71ee3898afabad0c09f4.png)
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2023-04-04更新
|
653次组卷
|
8卷引用:青海省海东市第一中学2023-2024学年高二上学期第一次月考数学试题
青海省海东市第一中学2023-2024学年高二上学期第一次月考数学试题贵州省镇远县文德民族中学校2022-2023学年高二下学期3月月考数学试题云南省曲靖市民族中学2022-2023学年高二下学期期末考试数学试题(已下线)第12讲 第一章 空间向量与立体几何 章节验收测评卷(基础卷)-【帮课堂】2023-2024学年高二数学同步学与练(人教A版2019选择性必修第一册)河南省新乡市铁路高级中学2023-2024学年高二上学期第一次月考数学试题山西省朔州市怀仁市第一中学校、大地学校高中部2023-2024学年高二上学期第二次月考数学试题(已下线)3.4.3用向量方法研究立体几何中的度量关系(第2课时 距离问题)(同步练习)-2023-2024学年高二数学同步精品课堂(北师大版2019选择性必修第一册)贵州省仁怀市第四中学2023-2024学年高二上学期第一次月考数学试题
名校
解题方法
5 . 已知集合
,
,
.
(1)若
是“
”的充分条件,求实数a的取值范围.
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9566b2a9c3ad7e5b242a4f6dc314584e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b3827e01d17cf742140d8b775f4c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e95c3a7494cc3e6da7d7c6e33c8c15d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eb5935678e432e6f1f3180bfdb3175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff109d3fadee141f93b199a5a72bc161.png)
您最近一年使用:0次
2023-03-26更新
|
1030次组卷
|
13卷引用:青海省西宁北外附属新华联外国语高级中学2023-2024学年高一上学期第一次月考数学试题
青海省西宁北外附属新华联外国语高级中学2023-2024学年高一上学期第一次月考数学试题1.2常用逻辑用语-2022-2023学年高一上学期数学北师大版2019必修第一册安徽省六安第一中学2022-2023学年高二下学期期末考试数学试题(已下线)1.4 充分条件与必要条件(AB分层训练)-【冲刺满分】(已下线)1.4.1充分条件与必要条件(分层作业)-【上好课】黑龙江省齐齐哈尔市克东县第一中学2023-2024学年高一上学期9月月考数学试题陕西省西安市阎良区关山中学2023-2024学年高三上学期第一次质量检测理科数学试题河北省衡水市安平中学2023-2024学年高一上学期第一次月考数学试题(已下线)专题04充分条件与必要条件-【倍速学习法】(人教A版2019必修第一册)甘肃省庆阳市环县第一中学2023-2024学年高一上学期第二次月考数学试题甘肃省武威市民勤县第一中学2023-2024学年高一下学期开学考试数学试题(已下线)第一章 集合与常用逻辑用语(单元检测)-【同步题型讲义】(人教A版2019必修第一册)贵州省黔东南州榕江县第一中学2022-2023学年高二上学期开学考试数学试题
名校
6 . 如图,在直角梯形
中,
,四边形
为平行四边形,平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/25/9858b829-f4fb-4dea-9585-e74135107d58.png?resizew=168)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
平面
;
(2)若
,求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d1750703a4d8ad6595e9ac955d27742.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5a68a008a22d5a8cea5fe8dcf31e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08fdcbfce42b0ec2fd0182d22c80db03.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/25/9858b829-f4fb-4dea-9585-e74135107d58.png?resizew=168)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b044c6d1ad421d20412af276d73f0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147310251a463539f66374c1f452fb67.png)
您最近一年使用:0次
2023-03-23更新
|
1452次组卷
|
4卷引用:青海省西宁市大通回族土族自治县2023届高三第二次模拟理科数学试题
解题方法
7 . 如图,在四棱锥
中,底面
是边长为
的菱形,
,
,
分别是
,
,
的中点,
平面
,
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/17/c5e54af3-2f07-4ace-9505-188c2698cb67.png?resizew=280)
(1)证明:
平面
;
(2)求二面角
的大小.
![](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/61128ab996360a038e6e64d82fcba004.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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/443ebca856f5c88869a8c3906c6b97b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db39823f5ae71572164b66ad0a31a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/17/c5e54af3-2f07-4ace-9505-188c2698cb67.png?resizew=280)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67825108ba67284ae24eb4780ba65531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b33b7213d99a817bff19bcf740a0697c.png)
您最近一年使用:0次
2023-03-16更新
|
480次组卷
|
2卷引用:青海省西宁市大通回族土族自治县2023届高三一模数学(理)试题
解题方法
8 . 已知椭圆
:
(
),四点
,
,
,
中恰有三点在椭圆
上.
(1)求椭圆
的标准方程.
(2)过点
的直线
与椭圆
交于不同的两点
,
,试问直线
,
的斜率之和是否为定值?若是定值,求出此定值;若不是,请说明理由.
![](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/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5e70a5e3217b465248fe5556d43704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc3f28e53953c09fe49c4b9a21d732fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f5982a89b1b83c6bbb635e35af01ddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78f951aa77fe06567532149782644fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a75aaf2b96de353cd12cc51f69e480.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392c373f9230552345b3f85a0f7f980b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcd5674420e9c9c40a035854ab31572.png)
您最近一年使用:0次
2023-03-13更新
|
943次组卷
|
5卷引用:2023届青海省部分名校高三下学期适应性检测文科数学试题
9 . 如图,在直三棱柱
中,
,E为
的中点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/7a3bc5ed-398e-400e-8f07-de901cce5a61.png?resizew=133)
(1)证明:
;
(2)求平面
与平面ABC所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30dbd22b0cbb47c914c42a4355e3ca98.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/7a3bc5ed-398e-400e-8f07-de901cce5a61.png?resizew=133)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/993830e5de2bbf858071d375bbf186f8.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
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2023-02-28更新
|
355次组卷
|
2卷引用:青海省西宁市2023届高三一模理科数学试题
10 . 已知
,
.
(1)若q是p的必要非充分条件,求实数a的取值范围;
(2)若
,且p,q至少有一个成立,求x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950f0997965a5673ff504e9c59b894d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d871fab845f85beb05f0a87ce97ab582.png)
(1)若q是p的必要非充分条件,求实数a的取值范围;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
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2023-02-25更新
|
310次组卷
|
5卷引用:青海省西宁市大通县2023-2024学年高一上学期期末考试数学试题