1 . 已知复数
对应的点到原点的距离是
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30155cd617a2aa908c85e01b67d237c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83666674f1111c699d7c5f7b792e0285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
2024-02-07更新
|
333次组卷
|
2卷引用:北京市清华附中高22级2023-2024学年高二上学期期末数学试题
名校
2 . 已知点
在抛物线
上,则点
到抛物线
的焦点的距离为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7cc20a41e422a6200340562b330ba3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df40ba57bb5819b4aaa38d514500052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2024-02-07更新
|
269次组卷
|
3卷引用:北京市清华附中高22级2023-2024学年高二上学期期末数学试题
解题方法
3 . 如图,在棱长为
的正方体
中,点
是线段
上的动点.给出下列结论:
①
;
②
平面
;
③直线
与直线
所成角的范围是
;
④点
到平面
的距离是
.
其中所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](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/d7f6f93171329d508d491143b9d71f7b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bbcdb9f641a2b3e06e0a01c79420667.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/011abe509df00fe9410ab08b585ad7db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a52848aff08399a36f217356007a4b.png)
③直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6722e5d2eadabfbfceb767faddeba5.png)
④点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a52848aff08399a36f217356007a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8238db0dc6e5f3a6ef147bcebf577c04.png)
其中所有正确结论的序号是
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/51e2b6df-72c2-4d92-a7fc-7dfa43e59835.png?resizew=177)
您最近一年使用:0次
4 . 记
为等差数列
的前
项和,已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](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/738dc67ac3b150252a964d1ffe3dfa63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8657a9f3eec0c1b0efa818f778129e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
您最近一年使用:0次
解题方法
5 . 函数
的定义域是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ba25925b6ed0b8d8dc7aad5e238be.png)
您最近一年使用:0次
23-24高三上·北京西城·期末
解题方法
6 . 已知抛物线
:
.①则
的准线方程为_________ ;②设
的顶点为
,焦点为
.点
在
上,点
与点
关于
轴对称.若
平分
,则点
的横坐标为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8db072e2b6104671b82f948012fb45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345e88b9f6f06a76e031c0627609eac4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
名校
7 . 已知抛物线
,则抛物线
焦点坐标为_____________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8815688895335a55ba9b7d665a2cd745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
23-24高二上·北京·期末
名校
解题方法
8 . 已知
、
满足:
,
,
,则代数式
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0587fa5c764b6d5d8439677fad912f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de38bc7405c8e0cf130ba2d13c374783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4017e4ab7a3ebbc318ec0072e855f4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef060897bb5df181b68720f23ce61eaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190b47b9b96ea962abe5cd6f72295e03.png)
您最近一年使用:0次
名校
9 . 已知等差数列
的前
项和为
,能够说明“对
,若
,则
”是假命题的
的一个通项公式为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
_______ .
![](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/0f8365233f341451598eb50525a1557a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1254070260067f8bf2fec39a7d0c8f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b96e1265c0d2641160d39de380bd81ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
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2024-02-04更新
|
552次组卷
|
2卷引用:北京市丰台区2023-2024学年高二上学期期末练习数学试卷
名校
解题方法
10 . 从数字1,2,3,4中选出3个不同的数字构成四位数,且相邻数位上的数字不相同,则这样的四位数共有___________ 个.
您最近一年使用:0次
2024-02-04更新
|
574次组卷
|
8卷引用:北京市清华附中高22级2023-2024学年高二上学期期末数学试题
北京市清华附中高22级2023-2024学年高二上学期期末数学试题北京市清华大学附中2023-2024学年高二上学期期末数学试题(已下线)专题2.3 组合及组合数(九个重难点突破)-2023-2024学年高二数学下学期重难点突破及混淆易错规避(人教A版2019)(已下线)第6.2.2讲 组合与组合数-2023-2024学年新高二数学同步精讲精练宝典(人教A版2019选修第三册)(已下线)7.3组合 (3)(已下线)6.2.3组合+6.2.4组合数 第一课 解透课本内容(已下线)专题01计数原理、排列组合、二项式定理9种常考题型归类【好题汇编】-备战2023-2024学年高二数学下学期期末真题分类汇编(人教B版2019选择性必修第二册)(已下线)专题02 计数原理-2