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1 . 设命题
,则命题p的否定为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea971510a05182d180e67a84e15469e6.png)
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2024-01-10更新
|
244次组卷
|
5卷引用:广东省湛江第一中学2023-2024学年高一上学期第二次大考数学试题
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2 . 已知集合
,集合
.
(1)存在
,使
,
成立,求实数
的值及集合
;
(2)命题
,有
,命题
,使得
成立.若命题
为假命题,
为真命题,求实数
的取值范围;
(3)若任意的
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f300113438dd4fcc6c482c63fe4516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b07d783b52a7aa14959fefff1f6f9c82.png)
(1)存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070054c0b4182ab7399ed56925844e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8c5147899c7281b0233a2ca02e0847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d32376822d0f20d9b264afc917b25a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7467b38962b39334863cb401ce899a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d75484dadcfd90b77556179228d94770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa0583842bff0b9ac0a539656f88099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9e7c815cc3e20c815f4e0596ba13d54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e26b38e357c7d985656ba7bb3c794a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9aa6ecf57fba086c6016f5e9452c831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . (多选)数学中的很多符号具有简洁、对称的美感,是形成一些常见的漂亮图案的基石,也是许多艺术家设计作品的主要几何元素.如我们熟悉的
符号,我们把形状类似
的曲线称为“
曲线”.在平面直角坐标系
中,把到定点
,
距离之积等于
的点的轨迹称为“
曲线”
.已知点
是“
曲线”
上一点,下列说法中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229e67dd9fe978e48c221b0b9dc57f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229e67dd9fe978e48c221b0b9dc57f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcb162568cb923c31c7209c8a22e4674.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca4d2dd6a806193dfd4d66991a48a82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be45dd63a0db0b7ab458f30ee6a67881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229e67dd9fe978e48c221b0b9dc57f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229e67dd9fe978e48c221b0b9dc57f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.“![]() ![]() ![]() |
B.![]() |
C.“![]() ![]() ![]() ![]() |
D.![]() ![]() |
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解题方法
4 . 已知 Q 为抛物线 C:
上的动点,动点 M 满足到点A(2,0)的距离与到点F(F是C的焦点)的距离之比为
则|QM|+|QF|的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e7e95602850ba43ecff8c2e0cc2494.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd49c7b10ed90ee6f1497e87d067b530.png)
A.![]() | B.![]() | C.![]() | D.4 |
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2023-11-18更新
|
1789次组卷
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5卷引用:广东省珠海市第二中学2023-2024学年高二上学期第二次阶段考试数学试题
广东省珠海市第二中学2023-2024学年高二上学期第二次阶段考试数学试题(已下线)3.3.1 抛物线及其标准方程(AB分层训练)-【冲刺满分】2023-2024学年高二数学重难点突破+分层训练同步精讲练(人教A版2019选择性必修第一册)重庆市巴蜀中学2024届高考适应性月考卷(四)(期中)数学试题(已下线)专题10 与圆有关的轨迹问题(期末选择题10)-2023-2024学年高二数学上学期期末题型秒杀技巧及专项练习(人教A版2019)(已下线)通关练17 抛物线8考点精练(1)
23-24高二上·北京·期中
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解题方法
5 . “
”是“直线
与直线
互相垂直”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8e1dd8da540badcb9a8f427c5b202e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ee7ff9af96cce3da4a33624ddaafda8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b369d4b717dd7b8355105be643813232.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
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2023-11-14更新
|
1327次组卷
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7卷引用:广东省佛山市南海区南海中学2023-2024学年高二上学期第二次阶段考试数学试题
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6 . 如图,在三棱柱
中,侧面
为菱形,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ee347187fbbfe9e8a6faf286795d79.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/10/939217cf-e039-4773-be1f-d837b4335176.png?resizew=181)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7870cee007535b979d35bc7feab75616.png)
(2)若
,
,
,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ee347187fbbfe9e8a6faf286795d79.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/10/939217cf-e039-4773-be1f-d837b4335176.png?resizew=181)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7870cee007535b979d35bc7feab75616.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7fd49bb962841b4575805030e19add.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e905b1e13fbf8dc6541689968acbe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a211ad5a06b505b8365a62c1946f3cb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
您最近一年使用:0次
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7 . 下面四个结论正确的是( )
A.若三个非零空间向量![]() ![]() ![]() |
B.若空间四个点![]() ![]() ![]() |
C.已知![]() ![]() ![]() |
D.已知向量![]() ![]() ![]() ![]() |
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8 . 已知直线
的方向向量为
,平面
的法向量为
,且
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e2f6a86f1bed6d8af6080b2b0a4ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b308f205139cbe0829f9bd58e3f2cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daac3b69009a27d28fa04fd88c9bb102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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9 . 下面命题正确的是( )
A.“![]() ![]() |
B.命题“![]() ![]() ![]() ![]() |
C.不等式![]() ![]() |
D.设![]() ![]() |
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解题方法
10 . 如图,在平行六面体
中,以顶点
为端点的三条棱长都是1,且它们彼此的夹角都是
为
与
的交点.若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc2fa2d5a551c6621de515395893eea.png)
,
(1)用
表示
;
(2)求
;
(3)求此平行六面体的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0138a25a4799dba47c61524de9dadc83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc2fa2d5a551c6621de515395893eea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf99794cad6b57a9b0ab180f1bae9db4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/16/8a64d053-e57a-4d5a-aad1-618363dad455.png?resizew=159)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7a046d7060dc843c78af806ee24f556.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739766b53c2bdf0e2adebe95d2f3b383.png)
(3)求此平行六面体的体积.
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