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解题方法
1 . 在极坐标系中,直线
(
,
)被曲线
截得的弦长为8,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f5d2e8186f0173d7862b1d39fb3dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10adc3992efb2badc23f81d36faa206f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fece79e7cf22f4a2b0a27c4347e2546.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d7b6ebfec23e127b2a730f4db76ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
您最近一年使用:0次
2020-11-25更新
|
896次组卷
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3卷引用:四川省成都市嘉祥外国语高级中学2020-2021学年高二下学期4月月考理科数学试题
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2 . 以坐标原点
为极点,
轴的正半轴为极轴建立极坐标系,已知曲线
的极坐标方程为
,则曲线
的离心率为_______ .
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e7f40f7eb906249ffb2a29cef9f533d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2020-06-19更新
|
227次组卷
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2卷引用:四川省成都市锦江区四川师范大学附属中学2020-2021学年高二下学期期中考试理科数学试题
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3 . 已知圆的极坐标方程为
,则此圆被直线
截得的弦长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc23f3d37e9ad307d2c49cd32bab802a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcca436b9f38396dafd79f5e302a6a06.png)
您最近一年使用:0次
2017-07-07更新
|
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6卷引用:四川省成都市树德中学2019-2020学年高二5月半期考试数学(理)试题