名校
1 . 已知方程
,下面四个命题是真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608e3b6e18246d45521a240b5bfc5009.png)
A.当![]() |
B.当![]() ![]() |
C.当![]() |
D.当![]() ![]() |
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2 . 如图,平面直角坐标系上的一条动直线l和x,y轴的非负半轴交于A,B两点,若
恒成立,则l始终和曲线C:
相切,关于曲线C的说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1773f4f16fc6a3568c3b9943cb5a4465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b002dd15089cfa7bc92316391f4a05.png)
A.曲线C关于直线![]() ![]() |
B.曲线C上的点到![]() ![]() |
C.曲线C上任意一点到原点距离的取值范围是![]() |
D.曲线C和坐标轴围成的曲边三角形面积小于![]() |
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3卷引用:河南省南阳市社旗县第一高级中学2024届高三下学期三模理科数学试题
3 . 已知抛物线
的焦点为F,过点F的直线l与抛物线交于A、B两点(点A在第一象限),
与
的等差中项为
.抛物线在点A、B处的切线交于点M,过点M且垂直于y轴的直线与y轴交于点N,O为坐标原点,P为抛物线上一点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8516f71467b419293fa27df70bdaed74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe5a58dfdb8f0f9932bd1d2ab40f937.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a83fdf4db29a178d9928fa0893cfff6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
A.![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() |
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7日内更新
|
388次组卷
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2卷引用:河南省南阳市社旗县第一高级中学2024届高三下学期三模理科数学试题
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解题方法
4 . 过抛物线C:
上的一点
作两条直线
,
,分别交抛物线C于A,B两点,F为焦点( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8c4afeb6cf6e4eac6c1044ecb12a2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
A.抛物线的准线方程为![]() |
B.过点![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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323次组卷
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2卷引用:河南省南阳市淅川县第一高级中学2024届高三下学期三模数学试题
解题方法
5 . 已知
是坐标原点,过抛物线
的焦点
的直线
与抛物线
交于
两点,其中
在第一象限,若
,点
在抛物线
上,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f8f333303816ff66e3aa44bcf97268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5fb95c0dbba2ce77a7dcc42fa06e058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.抛物线![]() ![]() | B.![]() |
C.直线![]() ![]() | D.![]() |
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解题方法
6 . 已知双曲线
的左、右焦点分别为
,直线
与
相交于点
,与
的一条渐近线相交于点
的离心率为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f9772b3a117674e43222976a5dc816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96cdc8363dae2933e2dd65cd3abf14a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a568d700215b8fad6c18b00a62981d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
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解题方法
7 . 已知曲线
,曲线
,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8afba75dac7dd121de3a5d76393be3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c629a4f2909d5a49f1e92b50771a6be6.png)
A.![]() ![]() |
B.若![]() ![]() ![]() |
C.直线![]() ![]() ![]() |
D.若![]() ![]() ![]() |
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解题方法
8 . 已知圆台
的上下底面半径分别为1,2,高为
,
为下底面圆
的一条直径,
为上底面圆
的一条弦,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e65ac334119ccd6204402a7aba29a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c0ebe1c0688a33afe02a2e31e14175.png)
A.圆台的体积为![]() |
B.圆台的母线与下底面所成角为![]() |
C.当![]() ![]() ![]() ![]() ![]() ![]() |
D.![]() ![]() |
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解题方法
9 . 已知椭圆
,点
分别为
的左、右焦点,点
分别为
的左、右顶点,过原点且斜率不为0的直线
与
交于
两点,直线
与
交于另一点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27e4397b76638266f40e7b589b46d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() ![]() |
D.![]() |
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2024-05-29更新
|
392次组卷
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2卷引用:河南省南阳市第一中学校2023-2024学年高三下学期模拟预测数学试题
10 . 已知直线
(
不同时为0),圆
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e95a4e689e4acf1cb2b9f863efa856e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab276155617fe201dcc71b5f1b54ab75.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() ![]() ![]() |
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