1 . 空间中有5个点,任意4点不共面. 若连了若干条线段而图中不存在四面体,则图中至多有三角形个.
A.3 | B.4 | C.5 | D.6 |
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2 . 已知
个正实数
,
且
,令
,
,其中,
,则
、
的大小关系是.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e955d6de35f6342943ad8bf358a28cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac4986d52e343c774ab3dcbae0bd3d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc3d05596d83c5d693065fbdedb7457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e805ccdd3e326e0f060bc24abb68bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd86d302564e0e98c68656b309cb1b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/897b606fdc64a88a0938d3d60c3ea3e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
A.![]() | B.![]() |
C.随![]() | D.完全不确定 |
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3 . 若直线与不等式组
表示的平面区域无公共点,则
的取值范围是
A.![]() | B.![]() | C.![]() | D.R |
您最近一年使用:0次
2018-12-15更新
|
741次组卷
|
4卷引用:第十一届高一试题(B卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)
第十一届高一试题(B卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)【校级联考】浙北四校2019届高三12月模拟考数学试题(已下线)专题10 不等式-2021年浙江省高考数学命题规律大揭秘【学科网名师堂】(已下线)2022年高考考前20天终极冲刺攻略(三)【理科数学】(5月31日)
4 . 平面上的两个向量
、
满足
,
,且
,
.若向量
,且
.则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5038ca8098994dcc635e669b6a158d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aae1bc31a8462128c1906eed27dec66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0904a72b63d7c4fa77e7cbe9cb8448ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8825655b8b526fe207a94ca8434c82c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975a418253120c1e06e9c3f530c6b0c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668ae2d0d4265fe68e7ce3a800a9d7c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8938257f9486c4b28768aa2cf4bb0f.png)
A.![]() | B.1 | C.2 | D.4 |
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5 . 对
,使
①的
、
应满足的充分必要条件是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee7b48e3e0d92bc9033f3be942b4750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb7dbbcbc842c9db4c30f3378dd3f72a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() | D.![]() |
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6 . 若正数
满足
,则
的取值范围是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5152368dc55742d811b620ec2e23f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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7 . 正三棱柱
侧面六条对角线
、
、
、
、
、
中,若有一对
,其余还有
对也互相垂直,则
等于( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede6a60cad0e0b58e1549fda6e085719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc65c549059934e69355d8ecc245da57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b362fffbd6e0fef50ca51fc300d23d74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c4ad6c77a6459a37bc398ecd5e5253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/675c6e2941eecb64b358527da4d4999c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da92060e1f241868d15df1cdcfaa552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617a5dd99e43fa539f28a1234293f8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64cb92b02c2f0e7e37837415d7289295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.2 |
B.3 |
C.4 |
D.5 |
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8 . 已知实数
满足
,c满足以
为边长可以构成三角形.若使该三角形的三个内角中的最大角具有最小值,那么,c应等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663a61ad241d5d874c9a9362f0ee917c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f5573b30734d65648f61c0a94c98de.png)
A.a | B.![]() | C.![]() | D.b |
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名校
9 . 设
、
、
是两个两两不相等的正整数.若
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b8429214f1f47081172e867a215f18c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd4067a19eeb07474557fe7b2508880.png)
A.2007 | B.1949 | C.1297 | D.1000 |
您最近一年使用:0次
2018-12-27更新
|
406次组卷
|
4卷引用:数学奥林匹克高中训练题_101
数学奥林匹克高中训练题_101上海市南洋模范中学2022-2023学年高一上学期开学考试数学试题(已下线)第09讲 函数的基本性质(7大考点)-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)北京市第八十中学2023-2024学年高一上学期(10月月考)阶段测评数学试题
10 .
的三边长分别为
,
,
.若
,则
,
,
中小于0的个数为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd64cfc4f355c60554b4f76c5ad17124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381175bc183cdb9780e17449afe45bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37460eceba9efa198566d71b8b2ae041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8e07831674f10ba28831875ef342571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd358ae9145b560a9cb764477a274ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6b3655d34215a3ec20702e45462cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b00ba700168ff102c1da2821e4d469d.png)
A.3 | B.2 | C.1 | D.0 |
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