名校
1 . 已知椭圆
与双曲线
的焦距之比为
.
(1)求椭圆
和双曲线
的离心率;
(2)设双曲线
的右焦点为F,过F作
轴交双曲线
于点P(P在第一象限),A,B分别为椭圆
的左、右顶点,
与椭圆
交于另一点Q,O为坐标原点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd486b8796b3454eab219c28ed131683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e8ecb41c1e7e0cea771f75ccf1b6de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)设双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb7c47e3b286437d8e6ee8b7ec4f003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932b5ed149ea885cfd5353ff2e6ceac2.png)
您最近一年使用:0次
2024-01-25更新
|
959次组卷
|
8卷引用:广西贵港市2023-2024学年高二上学期期末考试数学试卷
解题方法
2 . 已知椭圆:
(
),直线
:
过
的右焦点
,椭圆的长轴长是下顶点到直线
的距离的2倍.
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae3e029070ad0d2ce680d5336ed7150a.png)
您最近一年使用:0次
2024-01-03更新
|
412次组卷
|
4卷引用:广西2024届高三高考桂柳鸿图模拟金卷试题(二)
解题方法
3 . 已知函数
.
(1)当
时,求
的最大值;
(2)当
时,,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6798caff15f1620df3a5dc7bf6cc34e9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3395c7415946c9beec09d7752650f826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2475513af67111df7a5d213692a474a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b24f256f92f6f34e4c1f28791f013e9.png)
您最近一年使用:0次
2023-12-21更新
|
280次组卷
|
2卷引用:广西玉林市部分学校2024届高三上学期12月模拟数学试题
4 . 在棱长为2的正方体
中,点Q为线段
(包含端点)上一动点,则下列选项正确的是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/19/780aff38-3466-4ef1-b766-dec7e919f170.jpg?resizew=172)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/19/780aff38-3466-4ef1-b766-dec7e919f170.jpg?resizew=172)
A.三棱锥![]() |
B.在Q点运动过程中,存在某个位置使得![]() ![]() |
C.![]() ![]() |
D.直线AQ与平面![]() ![]() |
您最近一年使用:0次
2023-12-19更新
|
484次组卷
|
4卷引用:广西玉林市部分学校2024届高三上学期12月模拟数学试题
广西玉林市部分学校2024届高三上学期12月模拟数学试题广西壮族自治区贵港市2024届高三上学期12月模拟考试数学试题(已下线)第5讲:立体几何中的动态问题【练】(已下线)第二章 立体几何中的计算 专题六 空间定值问题 微点6 空间定值问题综合训练【培优版】
解题方法
5 . 已知双曲线
的左右焦点分别为
、
,若双曲线
上的点
,使得
,且
,则双曲线
的离心率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8345049093e5b7b664bbed64fe7ea1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78dd84a602d611ed50b1e71f931fc7ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2023-12-19更新
|
461次组卷
|
4卷引用:广西玉林市部分学校2024届高三上学期12月模拟数学试题
解题方法
6 . 已知点P在椭圆
,直线
与椭圆
交于A,B两点,当P是椭圆C的上顶点,A,B是椭圆D的左右顶点时,
的面积为
.
(1)求椭圆D的方程;
(2)直线PA,PB分别交椭圆D于另一点M,N,若
,求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa3a2ace3949f3e3261614a1d80c2469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7423992d70f9d945a9abe9db2c066d22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10e8abf8690e4b129466ddb918bcc94.png)
(1)求椭圆D的方程;
(2)直线PA,PB分别交椭圆D于另一点M,N,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d28b819b58bad771942be005f91af218.png)
您最近一年使用:0次
2023-12-19更新
|
324次组卷
|
3卷引用:广西玉林市部分学校2024届高三上学期12月模拟数学试题
广西玉林市部分学校2024届高三上学期12月模拟数学试题广西壮族自治区贵港市2024届高三上学期12月模拟考试数学试题(已下线)重难点14 圆锥曲线必考压轴解答题全归类【十一大题型】(举一反三)(新高考专用)-2
7 . 已知双曲线
:
的左右焦点分别为
,
,实轴长为8,离心率为
,点
,
,
是双曲线上的任意两点,过点
分别作双曲线的两条渐近线的垂线,垂足分别为
,
两点.下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.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/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb486a2e713246204f62cd6f19b5ef1.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
A.若点![]() ![]() ![]() |
B.若点![]() ![]() |
C.存在点![]() ![]() |
D.若直线![]() ![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-12-06更新
|
341次组卷
|
3卷引用:广西三新学术联盟2023-2024学年高二上学期12月联考数学试题
8 . 已知双曲线
的左、右焦点分别为
,双曲线C的右顶点A在圆
上,且
.
(1)求双曲线C的标准方程;
(2)若过点
的直线l交双曲线C的右支于E,F两点,Q为x轴上一点,满足
;试问
是否为定值?若是,求出该定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd32b90b7f4918d1dcdb513a94e2f2e3.png)
(1)求双曲线C的标准方程;
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff2e866eefdb38ad0b3a52ec90d0329b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9ef6c1350d532984159e7870a1b132.png)
您最近一年使用:0次
解题方法
9 . 已知函数
,若方程
恰有三个不同的实数根,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1598552c43dbc5fc6143a4aa4cc8b9f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7888a556bef934da78320c9b91e26b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 某数学学习小组甲、乙、丙三人分别构建了如图所示的正四棱台①,②,③,从左往右.若上底面边长、下底面边长、高均依次递增
,记正四棱台①,②,③的侧棱与底面所成的角分别为
,
,
,正四棱台①,②,③的侧面与底面所成的角分别为
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9fe8be4195efa5922de62a208227f8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943b765718479c160ba61ec5c6f8c5f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e29bf5652f0d4f764c3606efcdb445f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9177f43add5ca8480daa636afc5862b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f64fa38725c136504f723019a18dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93fa313adc4ac7608ba9449fd755212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8d4017e1a37acb0c8e00508be472b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/242851e5-dc6d-46bf-bda3-8712f6e94023.png?resizew=410)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-11-25更新
|
334次组卷
|
3卷引用:广西普通高中2024届高三跨市联合适应性训练检测卷数学试题