1 . 若函数
的关系式由方程
确定.则下述命题中所有真命题的序号为_____________ .
①函数
是减函数;
②函数
是奇函数;
③函数
的值域为
④方程
无实数根:
⑤函数
的图像是轴对称图形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f8a29c83bf19a955a5cfe474456cb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a515116376f8c82276d4e0837b6cf8f8.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ead3fdcb8fe8f5eb3dbe7d96cabc28b.png)
④方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f00a9728f28395dd763aba3104a1079.png)
⑤函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
您最近一年使用:0次
2023-04-09更新
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2卷引用:陕西省渭南市2023届高三下学期教学质量检测(Ⅱ)理科数学试题
名校
2 . 如图,在平面直角坐标系
中,线段
过点
,且
,若
,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/9/0c986293-7ef4-4bb1-892c-ca68f60b4637.png?resizew=150)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f449cadb49859b80c31ef1f68bfe81b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43fea3e149eb7fadba6a034394d7c4d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e5524428288d48cdcf08adf0f776d7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/9/0c986293-7ef4-4bb1-892c-ca68f60b4637.png?resizew=150)
A.点A的轨迹是一个圆 |
B.![]() ![]() |
C.当![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
2023-04-08更新
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490次组卷
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3卷引用:山西省部分学校2023届高三下学期4月模拟考试数学试题
名校
解题方法
3 . 已知抛物线
的焦点到准线的距离为
,过抛物线的顶点作两条互相垂直的射线交抛物线于
两点(
两点与
点不重合),作
于点
.
(1)记动点
的轨迹为曲线
,求曲线
的方程;
(2)已知直线
,过点
作与
夹角为
的直线,交
于点
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cee097d4fe948c3d4f1b5c28b24adf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)记动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7748da6bf3303d6aaf17020009e2b5ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ea907b820c999daced6c12a4f876fc.png)
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名校
解题方法
4 . 公元前3世纪,古希腊数学家阿波罗尼斯结合前人的研究成果,写出了经典之作《圆锥曲线论》,在此著作第七卷《平面轨迹》中,有众多关于平面轨迹的问题,例如:平面内到两定点距离之比等于定值(不为1)的动点轨迹为圆.后来该轨迹被人们称为阿波罗尼斯圆.已知平面内有两点
和
,且该平面内的点
满足
,若点
的轨迹关于直线
对称,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c959b85e8d916cc9f509babb866f6312.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02af485e17e7628fd5a3ace6e0a32ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe53e549f52d6f0b33aa6ac482ae7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e430654fd10d725ea39912c3af7be992.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a9c87c72cb457b3e56f28740b1b30c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-04-04更新
|
815次组卷
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3卷引用:安徽省示范高中皖北协作区2023届高三下学期3月联考(第25届)数学试题
安徽省示范高中皖北协作区2023届高三下学期3月联考(第25届)数学试题江西省景德镇一中2022-2023学年高二(19班)下学期期中考试数学试题(已下线)2.4 圆的方程(精练)-2023-2024学年高二数学《一隅三反》系列(人教A版2019选择性必修第一册)
5 . 如图所示,正方体
棱长为2,点P为正方形
内(不含边界)一动点,
角平分线交
于点Q,点P在运动过程中始终满足
.
①直线
与点P的轨迹无公共点;
②存在点P使得
;
③三棱锥
体积最大值为
;
④点P运动轨迹长为
.
上述说法中正确的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/17/76ec96b9-2094-438e-ad4d-f00a6525099f.png?resizew=152)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0433f8116768b42642a7f7e5977ce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3332ce483bd11efea0a01e6cb329aa9d.png)
①直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
②存在点P使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a916d31a199e250556fb7478d9f57f7.png)
③三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a9ec3b527947cad9caa4537e0cb7e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a6b832d2922f5c5fea6a1143250f70.png)
④点P运动轨迹长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06beac41f26a7735bbeff2e7df52f51d.png)
上述说法中正确的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/17/76ec96b9-2094-438e-ad4d-f00a6525099f.png?resizew=152)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2023-04-03更新
|
702次组卷
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2卷引用:四川省凉山州2023届高三下学期二诊文科数学试题
名校
6 . 已知
是圆心为
,半径为2的圆上一动点,
是圆
所在平面上一定点,设
(
).若线段
的垂直平分线与直线
交于点
,记动点
的轨迹为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ff0c82f672abcc88511ea268efd60f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
A.当![]() ![]() | B.当![]() ![]() |
C.当![]() ![]() | D.当![]() ![]() ![]() |
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2023-04-01更新
|
655次组卷
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4卷引用:广东省深圳市龙华区2022-2023学年高二上学期期末数学试题
广东省深圳市龙华区2022-2023学年高二上学期期末数学试题安徽省芜湖市第一中学2023届高三最后一卷数学试题(已下线)专题3.2 双曲线(5个考点十大题型)(1)安徽省合肥市第八中学2024届高三下学期艺术生文科数学最后一卷
2023·全国·模拟预测
7 . 从
的外接圆上任意一点
分别向
的三边所在直线作垂线,垂直分别为
,
,
,则
,
,
三点共线,这一性质就是著名的西摩松定理,这条直线叫作西摩松直线.若圆
与
轴负半轴、正半轴分别交于点
,
,第一象限内的点
在圆
上,点
关于
轴的对称点为
,点
在
轴及直线
上的射影分别为
,
,则直线
的方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7121bfdb53eb8307706e8c63c4569b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac06bc73b408c6a70bd0f6d24ebb7d2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce2790947716b1cfa9c5e7a65db4093.png)
您最近一年使用:0次
8 . 已知点Q是圆C:
上一动点,点
,线段PQ的中点R的轨迹为E,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c6d5ae3d7e7cda97fba4cb2c7002a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328aaba77106396d4ca644c8b7a352e0.png)
A.![]() |
B.过点P且与圆C相切的一条直线方程为![]() |
C.轨迹E的方程为![]() |
D.轨迹E与圆C的公共弦所在的直线方程为![]() |
您最近一年使用:0次
9 . 已知圆C:
与圆
,P,Q分别为圆C和圆M上的动点,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d5956c8c1ffc3dd9ddce8359f11b075.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24482676ca3324dff073ade7ec07da7c.png)
A.过点(2,1)作圆M的切线有且仅有一条 |
B.不存在实数a,使得圆C和圆M恰有一条公切线 |
C.若圆C和圆M恰有3条公切线,则![]() |
D.若![]() ![]() |
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名校
10 . 已知
,
,点P满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf5a6145990adf5574f0e0f2fc828ea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3326927e4b01e981a19109633141e06a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ed40bce11976e6d1a7274116c69c379.png)
A.点P在以AB为直径的圆上 | B.![]() ![]() |
C.存在点P使得![]() | D.![]() ![]() |
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