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解题方法
1 . 若
,则
的最大值是____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5fbef7f8c4a637803773647e17388b5.png)
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2 . 过原点作圆
(
为参数)的两条切线,则这两条切线所成的锐角为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dde1f282dc5c1154170d85b4b8e11e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
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2022-02-22更新
|
348次组卷
|
4卷引用:黑龙江省哈尔滨师范大学附属中学2021-2022学年高三上学期期末考试数学(文)试题
3 . 在极坐标系中,圆心在
且过极点的圆的方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d35307a37ed58699da8b2acb96fbb1e.png)
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4 . 已知点
的极坐标为
,则它的直角坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eac3b16d86d875dcfc2ff9f11baeec6.png)
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2020-12-08更新
|
1025次组卷
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4卷引用:黑龙江省大庆实验中学2020-2021学年高三上期中考试数学(理)试题
黑龙江省大庆实验中学2020-2021学年高三上期中考试数学(理)试题上海市格致中学2021-2022学年高二下学期期末数学试题上海市洋泾中学2022-2023学年高二下学期3月月考数学试题(已下线)上海高二下学期期末真题精选(基础60题60个考点专练)-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)
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5 . 在平面直角坐标系
中,圆
,以坐标原点
为极点,
轴正半轴为极轴,直线
的极坐标方程为
,直线
交圆
于
两点,
为
中点.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e10274381f2cfe52e79b99d9e98b804e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe281e87e03ff36d46bc3f23b4d0d26.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b748b78d74ef6993be0b088672716f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
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