直角坐标系中圆心在(5,0)标准方程是(x-5)²+y²=25x²-10x+y²=0x=pcosθy=psinθ代入,得p²cos²θ-10pcosθ+p²sin²θ=0p²cos²θ+p²sin²θ-10pcosθ=0p...