1 . 已知圆
过点
和
,且圆心
在直线
上.
(1)求圆
的标准方程;
(2)经过点
的直线
被圆
截得的弦长为4,求
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8a1416a8924fbedf648d31e953e885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198b4a11d803a978b4afc66683b823ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66357bfca5fd9ea619df719ae1acdae.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a35802ebb3ceea9c7bd70ebc8491926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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名校
2 . 如图,长方体
的底面
为正方形,
为
上一点.
(1)证明:
;
(2)若
平面
,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419aee8a92d4b6ec81bf250c9ddb12d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/1/56634a11-d9cf-4f5e-81e7-5d74b1c1a8f1.png?resizew=114)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b6c68ad9b2e22725f3cbf7c1a3f8dc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adf679c5b5063388202ee10d28ee8c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
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2024-02-01更新
|
331次组卷
|
4卷引用:内蒙古巴彦淖尔市2023-2024学年高二上学期期末考试数学试题
3 . 已知抛物线
的焦点为
是
上的点,且
.
(1)求
的方程;
(2)已知直线
交
于
两点,且
的中点为
,求
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315ade6f1c078456b174d1fa56a65ca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23359c60aaf591f98b0ed48522f9c48a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4212afb2cfabd73893af322539b18d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bb053c0c73bccec3ba5cb1d8c83fb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2024-01-23更新
|
533次组卷
|
3卷引用:内蒙古巴彦淖尔市2023-2024学年高二上学期期末考试数学试题
解题方法
4 . 已知数列
的前
项和为
,且
.
(1)求
;
(2)若
,数列
的前
项和为
,当
为何值时,
最大?并求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc18d9dd4a350b068ec5b65973dbdd4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58ed86115082ef4eca8105a42c5a331.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/268fe9012f22780fe0079742922862a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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解题方法
5 . 设数列
满足
.
(1)求
的通项公式;
(2)记数列
的前
项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8329103a1a476fa3307bc3c69e91a7a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)记数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a9332b5670e73dda65088d80e883c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105de1b20942840a12712c6795a05e1b.png)
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6 . 已知双曲线
的离心率为
,且其焦点到渐近线的距离为1.
(1)求
的方程;
(2)若动直线
与
恰有1个公共点,且与
的两条渐近线分别交于
两点,
为坐标原点,证明:
的面积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28dbdb64f3a81099b5ce93f4871c8bd3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
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2024-01-17更新
|
796次组卷
|
6卷引用:内蒙古巴彦淖尔市2023-2024学年高二上学期期末考试数学试题
7 . 某工厂甲、乙两个车间包装同一种产品,在自动包装传送带上每隔30mm抽一包产品,称其质量是否合格,分别记录抽查数据如下:
甲车间:102,101,99,103,98,99,98;
乙车间:110,115,90,85,75,115,110.
(1)这样的抽样是何种抽样方法?
(2)估计甲、乙两个车间的均值与方差,并说明哪个车间的产品较稳定.
甲车间:102,101,99,103,98,99,98;
乙车间:110,115,90,85,75,115,110.
(1)这样的抽样是何种抽样方法?
(2)估计甲、乙两个车间的均值与方差,并说明哪个车间的产品较稳定.
您最近一年使用:0次
2024-01-07更新
|
214次组卷
|
2卷引用:内蒙古巴彦淖尔市临河区第三中学2021-2022学年高二(计算机班)上学期期末数学试题
解题方法
8 . 已知抛物线
的焦点为
.
(1)求
;
(2)斜率为1的直线过点F,且与抛物线交于A,B两点,求线段AB的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63309dbc3612815f6dbdee23d9a10adc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)斜率为1的直线过点F,且与抛物线交于A,B两点,求线段AB的长.
您最近一年使用:0次
解题方法
9 . 某中学高二年级在期中考试之后为了了解学生学习物理的情况,抽取了10名成绩在
分(满分为100分)之间的学生进行调查,将这10名学生的成绩分成了六段:
,
,
,
,
,
,绘成频率分布直方图,如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/b48dad02-2261-4776-b2e8-05e03e390866.png?resizew=220)
(1)求这10名学生的成绩的众数和成绩在
的学生人数;
(2)从成绩在
的学生中任抽取2人,求成绩在
间的学生恰好有1人的概率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83a43f3ebc44a7e662de180019daf578.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd6e3de3588bcaccb79edb5d2790f1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fbb9ab17de8a7fa1eee43b231ea8da0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08578ca935bf6382b18a33dab0a1b9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c98273bbcb4fa81556f02102323a8c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6178f0c2f2fdfd7a0219f1d9b392cad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a84e864379bbb169336c7c69aa23475.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/b48dad02-2261-4776-b2e8-05e03e390866.png?resizew=220)
(1)求这10名学生的成绩的众数和成绩在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d24b3b46b8af6d8b2ba292f1933556c.png)
(2)从成绩在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b25603d4b4ea515286d5626faefa01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9098e124729152f306b9a98163c4299f.png)
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10 . 求适合下列条件的曲线的标准方程.
(1)准线方程为
的抛物线的标准方程
(2)虚轴长为
,顶点为
的双曲线的标准方程;
(1)准线方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
(2)虚轴长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd243fab0af865af67a2ab817e909cf5.png)
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