名校
1 . 在平面直角坐标系xOy中,长、短轴所在直线不与坐标轴重合的椭圆称为“斜椭圆”,将焦点在坐标轴上的椭圆绕着对称中心顺时针旋转
,即得“斜椭圆”
,设
在
上,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c20e88a33043f4279fff360c81006e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a315082c24416a968957e7f4905526c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.“斜椭圆”的焦点所在直线的方程为![]() | B.![]() ![]() |
C.旋转前的椭圆标准方程为![]() | D.![]() |
您最近一年使用:0次
解题方法
2 . 如图,已知椭圆
的左、右焦点分别为
,点M,N在
上,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50ba772d5b33715aefa57d448951b9ec.png)
,则
的离心率为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50ba772d5b33715aefa57d448951b9ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cda28e418f5c1d8e13919a394036f3c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
名校
3 . 已知复数
和
,则下列命题是真命题的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81de741b989ce8ffda7a7f6644b7d0f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
名校
4 . 已知复数
和
,则下列命题是真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12c16699fdf07ca29eafe7425c695732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
名校
解题方法
5 . 椭圆
,
,
为其左右焦点,
为椭圆
上一动点.则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a784b79d1304a5ee6a4702ebfb5ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.若![]() ![]() |
B.![]() ![]() |
C.使得![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
名校
6 . 已知
,
分别为椭圆
的左、右焦点,点P在第一象限内,
,G为
重心,且满足
,线段
交椭圆C于点M,若
,则椭圆C的离心率为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e031bfda898bfd401eb7d064331e771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ee9681634d8189ba70279424dffe76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03d31c3aa8504ec49f3c2327e82dc1ed.png)
您最近一年使用:0次
名校
7 . 焦点在
轴上的椭圆
(
), 点
是椭圆的左、右焦点,点
是椭圆上的点,
的内切圆的圆心为
,若
,过原点的直线交椭圆
于
两点,则
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724ecabe387a6d12dd1a7275170be503.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f86f1584da7a2d66494d237c808172.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/62384d7138f316962e199c6c9268b1b7.png)
您最近一年使用:0次
2023-03-10更新
|
605次组卷
|
2卷引用:黑龙江省大庆实验中学2023届高三下学期5月考前得分训练(三)数学试题
名校
解题方法
8 . 已知
分别为椭圆
和双曲线
的公共左,右焦点,
(在第一象限)为它们的一个交点,且
,直线
与双曲线交于另一点
,若
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf760ca313eb9e9fba1ccf896ccd625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7affd8a277498fd39b4a2a95d649f45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/765105aafdb904d231815038b140a078.png)
A.![]() ![]() | B.双曲线![]() ![]() |
C.椭圆![]() ![]() | D.![]() |
您最近一年使用:0次
2023-03-08更新
|
1256次组卷
|
7卷引用:黑龙江省大庆实验中学2023届高三下学期5月考前得分训练(二)数学试题
9 . 已知椭圆
的左、右焦点分别是
,左、右顶点分别是
,点
是椭圆
上异于
的任意一点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ddaa027ce520c1c035399c3674bf39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
A.![]() |
B.存在点![]() ![]() |
C.直线![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
10 . 已知空间几何体
是由圆柱切割而成的阴影部分构成,其中
,
为下底面圆直径的两个端点,
,
为上底面圆直径的两个端点,且
,圆柱底面半径是1,高是2,则空间几何体
可以无缝的穿过下列哪个图形( )
![](https://img.xkw.com/dksih/QBM/2020/5/18/2465261951516672/2465333926617088/STEM/65a7dffb275c4af1a77123257548e89a.png?resizew=189)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77e3c1c236141d6118429fade0a9b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/2020/5/18/2465261951516672/2465333926617088/STEM/65a7dffb275c4af1a77123257548e89a.png?resizew=189)
A.椭圆 | B.等腰直角三角形 | C.正三角形 | D.正方形 |
您最近一年使用:0次