1 . 在直角坐标系xOy中,曲线
的参数方程为
(
为参数),以坐标原点为极点,x轴的正半轴为极轴建立极坐标系,直线
的极坐标方程为
.
写出曲线
的普通方程和直线
的直角坐标方程;
若直线
与曲线
有两个不同交点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb6101e45f8d7013bc3dc4197188c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184ee8f1ac2b8cd655a5c30f8d8bc510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4acff197122a9413a9e9437b82a34837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acfc9319b4dfcefd8f0bb0338f7cbf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09d975ba7597b0276c20b51070e1429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb6101e45f8d7013bc3dc4197188c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acfc9319b4dfcefd8f0bb0338f7cbf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acfc9319b4dfcefd8f0bb0338f7cbf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb6101e45f8d7013bc3dc4197188c0c.png)
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2019-04-14更新
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2卷引用:【市级联考】广东省广州市2019届高中毕业班综合测试(一)文科数学试题