名校
解题方法
1 . 如图,在长方形
中,
,
,E为DC的中点,F为线段EC(端点除外)上的动点.现将
沿AF折起,使平面
平面
,在平面
内过点D作
,K为垂足.设
,则t的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79c5041878c15de69253ca11a03ab1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf6dc837ae85207789b94d109c5c2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5031363bc487f62b2ae5fdf2c07b8e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e1920ec2f8e8b90abbd128ad9e4776d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-06-12更新
|
390次组卷
|
3卷引用:江西省宜春市宜丰中学2023-2024学年高二下学期6月月考数学试题
名校
解题方法
2 . 已知点
,
是圆
:
上的任意一点,线段
的垂直平分线交
于点
,设动点
的轨迹曲线为
;
(1)求曲线
的方程;
(2)过点
作斜率不为0的直线
交曲线
于
两点,交直线
于
.过点
作
轴的垂线,垂足为
,直线
交
轴于
点,直线
交
轴于
点,求线段
中点M的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daec826bcf98e738a52fa34eb8a5e85b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a8607b7bdbcb604e6fcfbccb66ed2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fcb20a6972108871adbf284f9e5006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ffda0c209f06e21770aeab0abc8cbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
(2)过点
![](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/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
2024-04-06更新
|
254次组卷
|
2卷引用:江西省九江市第一中学2023-2024学年高二下学期4月月考数学试题
解题方法
3 . 已知椭圆
的左、右焦点分别为
和
,点
在椭圆上且在
轴的上方
若线段
的中点
在以原点
为圆心,
为半径的圆上,则
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb4717d7fa6d522090c5e949f650bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e55590555905eb4f57889bbd16e39a.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/54e1d0f65817ba32a732040518f41440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8b3616d8d33f54ddac1c485a95a7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74ca2c6b692d86f0b2abc4b9ab32ba31.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 已知正项数列
的前n项和
满足
(n为正整数),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
_________ ;记
,若函数
的值域为
,则实数k的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b395a99c51ee3d33279d0650c245593e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2a0686fb74ed14df00e0efefc354d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cfc381be76b874a795d81bb6c085116.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
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名校
解题方法
5 . 已知点A,B,C是离心率为
的双曲线
上的三点,直线
的斜率分别是
,点D,E,F分别是线段
的中点,
为坐标原点,直线
的斜率分别是
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbcf744dceb18820e4a1ca354cb3cfe1.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d2b05d20e954445dd0f4b373830f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942e6dafcfcbf0682856b9f25178694d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca1726d463bd741c904abd9b6589056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942e6dafcfcbf0682856b9f25178694d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e8ebdbd58b757fc18d53f7a57348ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86305b0d0df92dc1706b8f0e335498c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13966d20d2ca1024038e532cba54865e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbcf744dceb18820e4a1ca354cb3cfe1.png)
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名校
解题方法
6 . 已知F为抛物线
的焦点,M,N,P,Q是C上四个不同的动点,满足直线
,
过F,其中M,P在第一象限,若直线
与x轴的交点为
,
,
,
,
的面积分别为
,
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e90be0db8c2f6610ee002461f45cdab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/322b7fc53308233b59dce017d044c3e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6f426b792991048b55d4cfaddb6ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7b3c1d0057c4b0405f28b48043d9af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ce74b3d06976675398a88cee8064fe4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30f56664446f32dbbc2c5f12a99374.png)
A.![]() ![]() | B.直线![]() ![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-03-03更新
|
193次组卷
|
2卷引用:江西省部分重点中学2023-2024学年高二上学期期末联考数学试题(A卷)
7 . 已知数列
满足:
,正项数列
满足:
,且
,
,
.
(1)求
,
的通项公式;
(2)已知
,求:
;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f51d2d57bb9a400d2051f325b614419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68783e644e41b5a3aac4e81d44ba5f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ffaa768f1232ff14bcd2cdd438ce53a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1273751a0b5a984cf01c2d0e00e474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb27d03d22ec55dbf33d6d9d3c44854f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03e0c7c3411a1f192200d24f7161d4a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ca23ce02583bd8fe3b9d06d99e0e3c.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dacb1f9b17bb176ab57962aa783179ad.png)
您最近一年使用:0次
2024-03-03更新
|
1290次组卷
|
4卷引用:江西省南昌市第十九中学2023-2024学年高二下学期3月月考数学试题
江西省南昌市第十九中学2023-2024学年高二下学期3月月考数学试题广东省珠海市斗门区第一中学2023-2024学年高二下学期第一次月考数学试题天津市南开中学2024届高三第四次月检测数学试卷(已下线)模型2 用放缩思想速解不等式证明问题模型(高中数学模型大归纳)
解题方法
8 . 在平面直角坐标系
中,双曲线C:
的渐近线的方程为
,焦距为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/52f43616-e533-4692-8731-d931108be908.png?resizew=159)
(1)求
的方程;
(2)如图,点
为
的下顶点,点
在
轴上(位于原点与上顶点之间),过
作
轴的平行线
,过
的另一条直线交
于
两点,直线
分别交
于
两点,若
,求
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2beb91f10d2d8f2aa0dcc3f5cd1598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e6225d30a05e50c12a1295fb7a750d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd989cfcc0970fc270648dacb261d2aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbff61fe9d4e93d7cc338489d1c99c40.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/52f43616-e533-4692-8731-d931108be908.png?resizew=159)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/d053b14c8588eee2acbbe44fc37a6886.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/0f85fca60a11e1af2bf50138d0e3fe62.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/4223fff2119423a02d73e5a2b0ff77d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d1527bd801714a397a1995f0242475.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad57e3727b7bbd795b05332fbf9649e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c03778677dd067a6aef94df60847fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
解题方法
9 . 在棱长为1的正方体
中,P为棱
的中点,Q为正方形
内一动点(含边界),则下列说法中正确的是 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
A.若![]() ![]() |
B.三棱锥![]() ![]() |
C.平面![]() ![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
名校
解题方法
10 . 已知正方体
的棱长为2,点
分别为棱
的中点,以下说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/2e6b6cdc-1429-4698-8de0-b6142f196047.png?resizew=157)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813ff40152764e06a810ed2553d28bb6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/2e6b6cdc-1429-4698-8de0-b6142f196047.png?resizew=157)
A.三棱锥![]() ![]() |
B.直线![]() ![]() |
C.异面直线![]() ![]() ![]() |
D.过点![]() ![]() |
您最近一年使用:0次