解题方法
1 . 已知圆O:x2+y2=8,点A(2,0),动点M在圆上,则∠OMA的最大值为________ .
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2 . 若过点P(1-a,1+a)与Q(4,2a)的直线的倾斜角为钝角,且m=3a2-4a,则实数m的取值范围是________ .
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2019-08-17更新
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1004次组卷
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5卷引用:智能测评与辅导[文]-直线与圆
智能测评与辅导[文]-直线与圆(已下线)狂刷40 直线与方程-学易试题君之小题狂刷2020年高考数学(理)(已下线)专练13 倾斜角与斜率-2021-2022学年高二数学上册同步课后专练(人版A版选择性必修第一册)(已下线)第05讲 倾斜角与斜率(教师版)-【帮课堂】2023版 湘教版(2019) 选修第一册 过关斩将 第2章 2.1 直线的斜率
3 . 设
,
,称
为
,
的平方平均数,
为
,
的调和平均数.如图,
为线段
上的点,且
,
,
为
中点,以
为直径作圆.过点
,
分别作
的垂线,交圆
于
,
两点.连结
,
.过点
作
的垂线,垂足为
.已知图中线段
的长度是
,
的算术平均数
,线段
的长度是
,
的几何平均数
.则图中所示线段中,线段__________ 的长度是
,
的平方平均数,线段__________ 的长度是
,
的调和平均数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc8b26fb79c1f4d36130c41b18c0f9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eafd0e253a0a62512d50c656de3dc2e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3d296e0d7154a170cb7d3ae42989b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bcccda6e75578c160552bcb1d7f160b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f89a8b5cf6996a6455375e405bfb9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d7009d4cbe7157d63ce50444443716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://img.xkw.com/dksih/QBM/2018/3/28/1912144167993344/1914912283279360/STEM/218587cc2d4245bb84c436bc113c5f9f.png?resizew=165)
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名校
4 . 如图,设
和
都是等边三角形,且
,则
的度数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4b17ce6e90cd3810a3696262e94c1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e016fac9484f4f6652da209c9b85d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a55a1a244f81097e05e715b69580faa.png)
![](https://img.xkw.com/dksih/QBM/2017/8/29/1762653204406272/1765471269150720/STEM/3e1a75369a1845f480297f5f73fc72d2.png?resizew=208)
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5 . 如图,圆O的直径CD=10cm,D为
的中点,CD交弦AB于P,AB=8cm,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/197afd81df9ccd8d391538340cc2f4ee.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/197afd81df9ccd8d391538340cc2f4ee.png)
![](https://img.xkw.com/dksih/QBM/2015/10/10/1572256268853248/1572256274620416/STEM/52ce66d8240543319bd10561517770b2.png?resizew=128)
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