名校
1 . 已知动圆M经过点
、
,P是圆M与圆C:
的一个公共点.当
最大时,圆
的半径为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee33736169c249a029f478a605dc2c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8128ddbc498393e3ea2475df1ab2f4f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee045fcf052cb7562aeca2e86f6346f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
名校
解题方法
2 . 已知椭圆
的左右焦点为
,若椭圆上存在不在
轴上的两点A,B满足
,且
,则椭圆离心率
的取值范围为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c4e0b3e7a3fca1d18284ac3d6501eeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8c40a47cda2bfbb0f091e690cfb2856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dcd143a57a268a5a8ef486e2a4d5c0a.png)
您最近一年使用:0次
2024高三·全国·专题练习
解题方法
3 . 已知函数
有两个零点
,且有极小值点
,求证:
(1)
;
(2)
;
(3)
;
(4)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef96ff936eb415b1f8fe6b9166d8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db8f867196410e2828e2bbd3183b02d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ca13a93b5f401c0d39ba52b0cffcb0.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed3126c20aaa829be4091ce7f2931b83.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3628078fad0d12a8bb238314a6a8fb6e.png)
您最近一年使用:0次
4 . 数列
:1,1,2,3,5,8,13,21,34,……称为斐波那契数列,该数列是由意大利数学家莱昂纳多·斐波那契(Leonardo Fibonacci)以兔子繁殖为例子而引入,故又称为“兔子数列”,
满足
,
(
,
),则
是斐波那契数列的第______________ 项.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8323901a49cac29afd7d62864f088077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a404164c8d199f60d183a59b3647cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209591cfb9f8271f5ad48d89f214f22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4b291192a27a2a49075931fb9bba06.png)
您最近一年使用:0次
名校
解题方法
5 . 已知x,y,z均为正实数,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa371e64f4f8524af2135c25d580002.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
的定义域为R,且
,则下列说法中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4fdede7dca20eedaff5edff96b3dda8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
7 . 已知圆
,过
的直线与圆
交于
两点,过
作
的平行线交直线
于
点.
(1)求点
的轨迹
的方程;
(2)过
作两条互相垂直的直线
交曲线
于
交曲线
于
,连接弦
的中点和
的中点交曲线
于
,若
,求
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77178147cc153b64efca477304749b89.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/254d90ef7eba319615e1fd6e01f6abd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d96ef8e714af322b2513088d1e39d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce8e311fba25aaed846ad7f80565f0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82482c50f0eb9786dcaf880fbd7c24f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28a2ac80f00802614863923e1acf580b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4fd083f28b75df5b833752121d9895.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
您最近一年使用:0次
2024·全国·模拟预测
8 . 在平面直角坐标系xOy中,已知圆A:
,点
,点P为圆A上任意一点,线段BP的垂直平分线和半径AP所在直线相交于点Q,当点P在圆上运动时,点Q的轨迹为C.
(1)求C的方程.
(2)斜率存在且不为0的直线l与C交于M,N两点,点D在C上.从下面①②③中任选两个作为已知条件,证明另外一个成立.
①
轴;②直线l经过点
;③D,B,N三点共线.
注:若选择不同的组合分别解答,则按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550d183b05000722c74baf25eb4a6741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c77a42750684cb6157c2c7fb9422a3.png)
(1)求C的方程.
(2)斜率存在且不为0的直线l与C交于M,N两点,点D在C上.从下面①②③中任选两个作为已知条件,证明另外一个成立.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4914b846a985658a528ab9d70ccc7c30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28491f7ef64389d62b0e1574ab56429.png)
注:若选择不同的组合分别解答,则按第一个解答计分.
您最近一年使用:0次
2024高三·全国·专题练习
解题方法
9 . 已知点F为椭圆
的左焦点,垂直于x轴的动直线l与椭圆C相交于不同两点P,Q,直线PF与椭圆C的另一个交点为M(异于点Q),直线QM恒过定点B,则点B的坐标为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69daca955a565fa537347dd0d93783f.png)
您最近一年使用:0次