名校
解题方法
1 . 若实数a,b,c满足
,
,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-03更新
|
171次组卷
|
2卷引用:河南省济源市2023-2024学年高一上学期期末质量调研数学试题
解题方法
2 . 华罗庚是享誉世界的数学大师,国际上以华氏命名的数学科研成果有“华氏定理”“华氏不等式”“华氏算子”“华—王方法”等,其斐然成绩早为世人所推崇.他曾说:“数缺形时少直观,形缺数时难入微”,告知我们把“数”与“形”,“式”与“图”结合起来是解决数学问题的有效途径.在数学的学习和研究中,常用函数的图象来研究函数的性质,也常用函数的解析式来分析函数图象的特征.已知函数
的图象如图所示,则
的解析式可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/21/8ff2b562-26d2-489e-a67c-4d71a3ef5517.png?resizew=165)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
3 . 已知
为坐标原点,
是椭圆
:
上位于
轴上方的点,
为右焦点.延长
,
交椭圆
于
,
两点,
,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffdda9e13ba390bdc0c92531c3db3cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa663d13025824b71461566dad0821a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d6c0150a14d7de2a1c80850853dd66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.3 | D.![]() |
您最近一年使用:0次
4 . 下列各式中:①
;②
;③
;④
;⑤
;⑥
.正确的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ed28220bfef1cc6be1c80cf67cafc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbf82d0306f6f5ce7b8aa3c8b4059e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34254ce6896f7978064e7dc9ec24795b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da954355d63f080eb03ba2e01bbc8686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58251bbbd245148d5547335a9dd1165c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f8c87a3551ac86161f4a79de8df0e4.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
5 . 等差数列
,0,
,…的第20项为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071ff10740d0ef09e9b6ab0bf8a92283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 若
构成空间的一个基底,则下列向量共面的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed18a92338c7578c18a5ba3a2ae1ed4.png)
A.![]() ![]() ![]() | B.![]() ![]() ![]() | C.![]() ![]() ![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
2024-02-14更新
|
119次组卷
|
2卷引用:河南省济源市2023-2024学年高二上学期期末质量调研数学试题
名校
7 . 在空间直角坐标系
中,点
关于
轴对称的点为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a834024400d0730af3e640ca4d5f54b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28bb24617e30add7ed7cf4d99ea74af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-14更新
|
228次组卷
|
3卷引用:河南省济源市2023-2024学年高二上学期期末质量调研数学试题
名校
解题方法
8 . 我国享誉世界的数学大师华罗庚曾说:“数缺形时少直观,形少数时难入微;数形结合百般好,隔离分家万事休.”告知我们把“数”与“形”,“式”与“图”结合起来是解决数学问题的有效途径.若
,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a525a6a596b6aaca6968d41810d29d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec87fb122b326ff30a111d85353c8f22.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-14更新
|
239次组卷
|
2卷引用:河南省济源市2023-2024学年高二上学期期末质量调研数学试题
9 . 已知数列
满足
,
,
,则数列
的第2024项为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd5359c8fdc022d7044ffb6fdb291666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f8272b4a6f1ff82934688f806e7ccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2933ac4b8d03574803c35cd94eecae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-14更新
|
654次组卷
|
3卷引用:河南省济源市2023-2024学年高二上学期期末质量调研数学试题
名校
10 . 已知空间三点
,
,
,则
与
的夹角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6dcd362a44588747e88b206e7c5ca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4caba22130af21cbde75bd92ba2aea8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7caeeea2761360cf6ab346e7259b3fd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbaeae7045ad94158cdf5ae97073bc17.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次