试题与答案

已知圆C的参数方程为x=1+2cosθy=3+2sinθ(θ为系数),若P是圆C

题型:解答题

题目:

已知圆C的参数方程为
x=1+2cosθ
y=
3
+2sinθ
(θ为系数)
,若P是圆C与x轴正半轴的交点,以原点O为极点,x轴的正半轴为极轴建立极坐标系,设过点P的圆C的切线为l,求直线l的极坐标方程.

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A, C

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