名校
1 . 如图,在四面体
中,
平面
,则此四面体的外接球表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9bf9a19de8edc94c2624070b3a58348.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-19更新
|
3762次组卷
|
7卷引用:四川省泸州市龙马潭区2023-2024学年高一下学期6月期末考试数学试题
四川省泸州市龙马潭区2023-2024学年高一下学期6月期末考试数学试题湖南省九校联盟2024届高三下学期第二次联考数学试题(已下线)【一题多变】外接于球 两心相连江苏省南通市海门中学2023-2024学年高二下学期3月学情调研数学试题(已下线)专题13.6空间图形的表面积和体积-重难点突破及混淆易错规避(苏教版2019必修第二册)(已下线)第六章立体几何初步章末二十种常考题型归类(1)-【帮课堂】(北师大版2019必修第二册)(已下线)高一数学下学期期末押题试卷02-期末真题分类汇编(新高考专用)
名校
2 . 已知复数z,下列说法正确的是( )
A.若![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() |
您最近一年使用:0次
2024-03-15更新
|
2577次组卷
|
4卷引用:四川省泸州市龙马潭区2023-2024学年高一下学期6月期末考试数学试题
名校
3 . 已知双曲线
的左,右焦点分别是
,
,左,右顶点分别是A,B,点P在C上,l是C的一条渐近线,O是坐标原点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ce1534a372db7666711443631c4ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
A.焦点![]() |
B.若![]() ![]() |
C.若l的倾斜角为30°,则其实轴长为![]() |
D.若直线PA,PB的斜率分别为![]() ![]() |
您最近一年使用:0次
2024-03-12更新
|
246次组卷
|
2卷引用:四川省泸州市2023-2024学年高二上期期末统一考试数学试卷
4 . 已知各项均为正数的等比数列
的前n项和为
,若
,
,
成等差数列,且
.
(1)求
;
(2)若
,求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b6fae41755ecb64ac239a5a2d767354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ab4706be6b3854b9c30ab609e5da68.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d527d9b8c65ce00307c68d93bfeaec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da72309d2507e2f5e5ed88d8cc08963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
5 . 设全集
,集合
,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef87ad66e5f7766f829dc5b3fe5ead2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715ea06834b0e78b2069342476fd0eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b196d5437671412700443727b783751a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-03-01更新
|
325次组卷
|
2卷引用:四川省泸州市泸县第一中学2024届高三上学期期末数学(理)试题
解题方法
6 . 若直线
与直线
平行,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff9cf3df50b5b1396fca74424289831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4066711b925f9b104917ad74ec98c6c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.0 | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
名校
7 . 已知椭圆
的左、右焦点分别为
,离心率为
,过
且垂直于x轴的直线交椭圆于点
,且
.
(1)求椭圆C的标准方程;
(2)过
的直线l交椭圆C于
两点,若
内切圆的周长为
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192a35f0603f57bcc6ec1e75927ba916.png)
(1)求椭圆C的标准方程;
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c07ebcbfacda073208d483c58e8a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e57d64df9b332d8496e58eafb7e2050e.png)
您最近一年使用:0次
名校
解题方法
8 . 如图,在几何体
中,
平面
为
上的点,
是
的中点,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/a164e176-08b2-43d1-8c35-b6a414a987eb.png?resizew=157)
(1)若
,求证:
平面
;
(2)若
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd654221ab95fe241d9e0202443f2609.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d62dc584a772c35e4843396151d77f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1af9b8659fc0f283a3a8ec62d6e30bff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/a164e176-08b2-43d1-8c35-b6a414a987eb.png?resizew=157)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed8e8f8b75e657565fe628d869b0bde3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d53d5c96de34fcf95794e51c2761b671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af29254fe60a392c249c5791279e9c8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f713da7dce54965bbef060ad2b507e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d90f940f5693b22ddf2e7c761887d8.png)
您最近一年使用:0次
9 . 过抛物线
的焦点作直线l与C交于A,B两点,已知点
,若
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a42451bdbef6c82dbaf8e06f0614794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b768ea6a05cbf45b28fc46c501ba532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
10 . 向量
在向量
上的投影向量为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc44c2c100d504f3bd2b71db08dc412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87bf2020d0ef698c58a5ad3c700cf53.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次