圆心为(2,-2)且直径过(6,3)的圆的标准方程
(6,3)在圆上
人气:235 ℃ 时间:2019-11-09 02:35:51
解答
依题意,r² = (6-2)²+[3-(-2)]² = 41
根据圆心在直角坐标系原点 圆的标准方程表达式为 x² + y² = r²
将圆心(2,-2)代入其中,得此预案的标准方程为:
(x+2)²+(y-2)² = 41
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