2021·全国·模拟预测
1 . 在一张纸片上,画有一个半径为4的圆(圆心为M)和一个定点N,且
,若在圆上任取一点A,将纸片折叠使得A与N重合,得到折痕BC,直线BC与直线AM交于点P.
![](https://img.xkw.com/dksih/QBM/2021/12/29/2882961589714944/2883222960324608/STEM/7bc185cb144f43e899e51fdb9de8dada.png?resizew=161)
(1)若以MN所在直线为
轴,MN的垂直平分线为x轴,建立如图所示的平面直角坐标系,求点P的轨迹方程;
(2)在(1)中点P的轨迹上任取一点D,以D点为切点作点P的轨迹的切线
,分别交直线
,
于S,T两点,求证:
的面积为定值,并求出该定值;
(3)在(1)基础上,在直线
,
上分别取点G,Q,当G,Q分别位于第一、二象限时,若
,
,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72811997a9f65e01fcc1d318bbd4d0dc.png)
![](https://img.xkw.com/dksih/QBM/2021/12/29/2882961589714944/2883222960324608/STEM/7bc185cb144f43e899e51fdb9de8dada.png?resizew=161)
(1)若以MN所在直线为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)在(1)中点P的轨迹上任取一点D,以D点为切点作点P的轨迹的切线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4407788e4dc88210bca71a2551d4f2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/648dad9505f3901b4806839bcbc7616f.png)
(3)在(1)基础上,在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4407788e4dc88210bca71a2551d4f2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec23c49bdf9dc11f6decfc7b35a9d01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd596cec579ec99b3915ac694124597.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e0e73c9e66789010b82f863a6be057d.png)
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2021-12-29更新
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3卷引用:江苏省扬州市邗江中学2022-2023学年高二上学期期中数学试题
解题方法
2 . 已知函数
,其中
.求证:
(1)
,且
;
(2)
,
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4d6363133c710c00b99fafa01dce16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1948bdb9bfc6493bc0e596d9a0dab5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/accad8245514b083d7434160085188fd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b9f295a43c5d78cf9518456fef0abda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32474ff2d16bb427dc7426e481b20709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2479b7fa52eafe0e011435864bfe9c37.png)
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3 . 已知双曲线
的实轴长为
,
、
分别是双曲线的左、右顶点,
为双曲线
上一点,连接
、
.当
时,有
成立.
(1)求双曲线
的方程;
(2)若线段
的中点为
,过
且与
垂直的直线与
交于
点,且
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5c2e64358e0ec7aa142c336d970306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.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/4cda5a4c295b2817b357e641564ef186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d910e4fc95f2d5ae748a22cb90d9d723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c585a01d24bfee658333eed6376707.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b75f71a396f2910be554b1c71f51a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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2021-12-03更新
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262次组卷
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2卷引用:江苏省泰州市姜堰中学2021-2022学年高二上学期期中数学试题
解题方法
4 . 已知抛物线
和
的焦点分别为
和
,且
.
(1)求
的值;
(2)若点
和
是直线
分别与抛物线
和
的交点(异于原点),连接
并延长交抛物线
于
,连接
并延长交抛物线
于
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/700ad7aed07a63e122201c04aee41aca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e024c990f50078447b1c2f5642844a68.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/a8d6c11ba57b8300a54187717c15c9c1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若点
![](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/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bb46dfe874c81668dff7678aa04c5e7.png)
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2021-12-03更新
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3卷引用:江苏省连云港市2021-2022学年高二上学期期中数学试题
5 . 设
、
分别是椭圆
的左、右焦点.
(1)求
的离心率;
(2)过
的直线
与
相交于
,
两点.
①当
为常数时. 若
成等差数列,且公差不为
,求直线
的方程;
②当
时. 延长
与
相交于另一个点
,试判断直线
与椭圆
的位置关系,并说明理由.
![](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/438d6cf48a3e8f6077c0db35dc8fa705.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a6b50f5332fe01e769d419aa074bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/245985a19e6b0744248b026c29ba4b2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41a80a5faf097bfc8bafbef34138be0b.png)
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解题方法
6 . 设向量
,
(x,
),满足
.
(1)求点
的轨迹c的方程;
(2)设
(
),P为曲线C上任意一点,求A到点P距离的最大值
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0db175b039b63249f6e20d210ebe077a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4024ed3b22b4bc570815e17552f94ba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54dad48527a47eab4a5916ab0421cc71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7436300ac35303b638aa98b10fb4d2.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca538a6d20cb578bd6d23ad843d7c32d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7398f52abf71a4dba8cc076a3f36a499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d9cc177a455a1b1dce1d6272ce95589.png)
您最近一年使用:0次
2021-09-25更新
|
583次组卷
|
4卷引用:江苏省南通市海安高级中学2021-2022学年高二上学期期中模拟数学试题
江苏省南通市海安高级中学2021-2022学年高二上学期期中模拟数学试题(已下线)第1课时 课后 椭圆的标准方程高中数学解题兵法 第八十三讲 集中力量,攻城略地(已下线)第三章 圆锥曲线的方程(A卷·知识通关练)(1)
7 . 已知函数
,
(1)试计算
…,据此你能发现什么结论?证明你的结论;
(2)讨论函数
的单调性;
(3)设
,求函数
在
上的零点个数(提示;可以借助(1)的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb98c25794c9159739d73400c68d578.png)
(1)试计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57a2eff3a89eda080d0ad0363237610a.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d6119aaaa6b3964bca3d41f9652fae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612c79eb4397fdbb3cb933955389b6a4.png)
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解题方法
8 . 设椭圆
长轴的左,右顶点分别为A,B.
(1)若P、Q是椭圆上关于x轴对称的两点,直线
的斜率分别为
,求
的最小值;
(2)已知过点
的直线l交椭圆C于M、N两个不同的点,直线
分别交y轴于点S、T,记
(O为坐标原点),当直线1的倾斜角
为锐角时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4129f43a6af21631251511e63e2ac4b9.png)
(1)若P、Q是椭圆上关于x轴对称的两点,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ddfa25e097562b856ddd5e7c0758ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5e1df302b5f108dc09b52d69a62c43b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d1e1062878dcb155964639267bdedf.png)
(2)已知过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81cfaea55f33b8890df50876207a327d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d42cb68c5c877a455ba7ac0a6b6a651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b20769e357c116a42ec696f6e02b72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
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2021-09-05更新
|
812次组卷
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6卷引用:专题6.3 期中押题检测卷(考试范围:第1-3章)3(难)-【满分计划】2021-2022学年高二数学阶段性复习测试卷(苏教版2019选择性必修第一册)
(已下线)专题6.3 期中押题检测卷(考试范围:第1-3章)3(难)-【满分计划】2021-2022学年高二数学阶段性复习测试卷(苏教版2019选择性必修第一册) (已下线)专题3.3 圆锥曲线与方程 章末检测3(难)-【满分计划】2021-2022学年高二数学阶段性复习测试卷(苏教版2019选择性必修第一册)(已下线)专题7.3 期末押题检测卷(考试范围:选择性必修第一册)3(难)-【满分计划】2021-2022学年高二数学阶段性复习测试卷(苏教版2019选择性必修第一册)湖南省长沙市长郡中学2021-2022学年高三上学期第一次月考数学试题河北省唐山市开滦第二中学2023届高三考前保温数学试题山西省运城市景胜学校2023-2024学年高二上学期11月月考数学试题A卷
名校
9 . 设函数
.
(1)当
时,
的最小值为5,求
的值:
(2)当
时,设
是函数
图象上的两个动点,且在A,B处的两切线
互相平行,求证:直线AB必过定点,并求出此定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57363b27165d20f8aca704f33e5bb0b2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538193a4717d564c01145e82314c2d1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeed535fdab3babeaf6447edaafbccc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
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10 . 已知
分别为椭圆W:
的左、右焦点,M为椭圆W上的一点.
(1)若点M的坐标为
(
),求
的面积;
(2)若点M的坐标为(x0,y0),且
是钝角,求横坐标x0的范围;
(3)若点M的坐标为
,且直线
(
)与椭圆W交于两不同点
,求证:
为定值,并求出该定值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
(1)若点M的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3a30dbf14b01f6f28900cbe5814d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f9a699aededce0ad803bf8257fbbcb.png)
(2)若点M的坐标为(x0,y0),且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22a3c7e465a61e9849dd223261be47c.png)
(3)若点M的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bec980f8331395f2955c4b6e49580a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b97b295f88972ba1c7e3cefda0885d.png)
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8卷引用:江苏省淮安市马坝高级中学2021-2022学年高二上学期期中数学试题
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