解题方法
1 . 在正四面体
中,
分别为
和
的中点,则异面直线
与
所成角的余弦值______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4278c0911e7df78965e78cff69cac5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94165c5047e68e952df7a8dc6dc32fda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
您最近一年使用:0次
解题方法
2 . 过抛物线
上一点
作两条相互垂直的直线,与E的另外两个交点分别为A,B,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0782718dd8b2e591ef21fc89d1af2fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0fe3f68cbbcc907caab5083d08df301.png)
A.E的准线方程为![]() |
B.过点M与E相切的直线方程为![]() |
C.直线AB过定点![]() |
D.![]() ![]() |
您最近一年使用:0次
3 . 已知
与
均为完全平方数,且
的正整数
共有 ( )个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2def5aa62f497709e1bd8258583d62fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e19f7bfb0ee59fc93e6e822a0658af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de3ae6568fc643dc326fb176ec6b510b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.1 | B.12 |
C.13 | D.以上都不对 |
您最近一年使用:0次
名校
解题方法
4 . 在三棱锥中,若顶点
到底面三边距离相等,则顶点
在平面
上的射影为
的( )
A.外心 | B.内心或旁心 | C.垂心 | D.重心 |
您最近一年使用:0次
2024-01-19更新
|
1032次组卷
|
5卷引用:上海市宝山区上海交通大学附属中学2023-2024学年高二上学期12月数学卓越测试题
上海市宝山区上海交通大学附属中学2023-2024学年高二上学期12月数学卓越测试题2024届高三新高考改革数学适应性练习(4)(九省联考题型)(已下线)黄金卷01(2024新题型)(已下线)第06讲 空间直线﹑平面的垂直(一)-《知识解读·题型专练》(已下线)13.2.3 直线与平面的位置关系(2)-【帮课堂】(苏教版2019必修第二册)
2024高三上·全国·专题练习
名校
解题方法
5 . 已知
,
,
(1)若
在
处取得极值,试求
的值和
的单调增区间;
(2)如图所示,若函数
的图象在
连续光滑,试猜想拉格朗日中值定理:即一定存在
,使得
,利用这条性质证明:函数
图象上任意两点的连线斜率不小于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c566b6273b93a7231f891a0889579227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d60df31661ec394cdec5f0ad6bac38.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0843a602fe240e5798bcbc7d54b19ddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)如图所示,若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd7fc0ca8a82663b87fa36afb9c4ec09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3fcc5073759c73c7a63c8818eca5c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a947d16d7293baf95e9274b9a0f5db78.png)
您最近一年使用:0次
6 . 如图,将
个整数放入
的宫格中,使得任意一行及任意一列的乘积为2或-2,记将
个整数放入
的宫格有
种放法,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2765e74b2306cee47bb6b641fdb9845c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ceef1abeeef220b4fe5f7d96feedd90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/767f5a4746f04db68386fac3970b1ed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ceef1abeeef220b4fe5f7d96feedd90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/767f5a4746f04db68386fac3970b1ed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2765e74b2306cee47bb6b641fdb9845c.png)
您最近一年使用:0次
7 . 将20个无任何区别的小球放入编号为1,2,3的三个盒子中,要求每个盒子内的小球个数不小于它的编号数,则不同的放法有( )
A.90种 | B.120种 | C.160种 | D.190种 |
您最近一年使用:0次
2024-01-10更新
|
791次组卷
|
6卷引用:辽宁省沈阳市重点学校联合体2023-2024学年高二上学期期末检测数学试题
辽宁省沈阳市重点学校联合体2023-2024学年高二上学期期末检测数学试题(已下线)专题2.5排列组合综合(强化训练)-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)6.2.3&6.2.4 组合、组合数(8大题型)精讲-2023-2024学年高二数学题型分类归纳讲与练(人教A版2019选择性必修第三册)(已下线)模块五 专题2 全真基础模拟2(已下线)专题03 计数原理与排列组合--高二期末考点大串讲(苏教版2019选择性必修第二册)(已下线)专题8-1排列组合归类-1
8 . 已知函数
(
),则函数
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ac9a839b199426d5d7bf13386fd36e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f274f1247962a5b263183922fedfa086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
9 . 已知数列
满足
,
.
(1)若
是递增数列,求实数
的取值范围;
(2)若
,且对任意大于
的正整数
,恒有
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fab51121848ce166035ceab6f4e00b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d0b399e3826e2721d683a357fe5dd4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e144b442dc601367909266594699b10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaacfaef44a654c0a1c283ef03fc0550.png)
您最近一年使用:0次
解题方法
10 . 已知函数
,其中
为常数.
(1)判断
的奇偶性,并说明理由;
(2)若在
上存在![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
个不同的点
(
),满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94eba026ab9188e4deaef4f24f67769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8050bd480227fa5a97d64e74ae97518.png)
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7239984ac3f00112921239e1dd3313c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5432187d1c042787433b7633292d00fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80be0c3c50d2bd6230b53fbd056122df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe1c31a81f198c443e71b83ca662939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5867fde790c54e6a931c5d1d22b049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94eba026ab9188e4deaef4f24f67769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8050bd480227fa5a97d64e74ae97518.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3dab458f8442e7cf674f6de24ab07c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次