求圆X平方加y平方减2x减5等于零的圆心及半径
人气:277 ℃ 时间:2020-02-06 03:29:23
解答
X^2+Y^2-2X-5=0
(X-1)^2+Y^2=6
圆心(1,0)
半径 根号6
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