解题方法
1 . 已知平行六面体
的底面
是菱形,
.求证:
.
![](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/659e631dbae2539d6a37ec1dd9001ff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bda52b48b75bf5409781554205c15d1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/1865156f-9bba-4fca-8c58-7f17bd96fa8c.png?resizew=195)
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2 . 已知方程
,下列叙述正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed0ade086bb0d1818e158fef088e7128.png)
A.方程表示的是圆. |
B.当![]() |
C.方程表示的圆的圆心在![]() |
D.方程表示的圆的圆心在![]() |
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解题方法
3 . 若直线
与直线
互相平行,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b20cdae5e668eb53174a4ef81f3496.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e143c4dec7ab2212f027e87827c1d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-12-01更新
|
271次组卷
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2卷引用:广西柳州市六校2022-2023学年高二上学期期中考试数学试题
4 . 平面直角坐标系中点
到直线
的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6951479694aec937a712901634a5a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e235d7dd12f948f5ffb2e5afddc95612.png)
A.1 | B.![]() | C.![]() | D.![]() |
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5 . 已知圆C经过点
,半径为
,其圆心C的坐标为
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd243fab0af865af67a2ab817e909cf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ce02259a85ea191541f4a708738f1.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6 . 已知圆
,过
作圆C的切线,则切线l的方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198b411f5e758e7068d23739306eba3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351bdbdcaf6ee0e13ac0d7af9c67921d.png)
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7 . 已知点
,直线l:
,则点A到直线l的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40630a669f4eedf626bc24851df10c85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1a686b80b8f109a929f58c2de7201d.png)
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8 . 已知
,圆
.
(1)将圆
的方程化为标准方程;
(2)若圆
的半径为3,且圆
与圆
外切,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79aa1cd422c466ad51792aca6846e9b3.png)
(1)将圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若圆
![](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/a7853143323fc45f29d4de50e4529866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2022-11-12更新
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227次组卷
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3卷引用:广西桂平市浔州高级中学2022-2023学年高二上学期贵港地区统考段考数学试题
名校
解题方法
9 . (1)求两条平行直线
与
间的距离;
(2)求过点
且与直线
垂直的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08813338ce3976a2dd5dcef05560e795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2102891a7aeab07fe670448ceeaa166.png)
(2)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77b96fc51eb8a9d03ced254ce8b78be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7f8878d628d46bcb847f791857b650.png)
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2022-11-12更新
|
457次组卷
|
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名校
10 . 若直线
的倾斜角为
,直线
的倾斜角为
,则直线
在
轴上的截距为______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a636be4dd0e15152aa8a3d4a5335bee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69e3cc7dd4a2d43c98ddcd2988aed28b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8dd0c52aca1675c17b9a019aa7901e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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2022-11-12更新
|
143次组卷
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3卷引用:广西桂平市浔州高级中学2022-2023学年高二上学期贵港地区统考段考数学试题