find the equation of the circle passing through the points (

来源：学生作业帮编辑：作业帮分类：数学作业时间：2024/05/21 18:59:52

find the equation of the circle passing through the points (4 3) (-2 -5) and (5 2)
Find the equation of the circle passing through the points (4 3) (-2 -5) and (5 2).
我真的对这题完全没辙了.马上考试了.

想要做圆方程,首先要找圆心
A(4,3) B(-2,-5) C(5,2)
过AC的直线为 y=-x+7 ,AC的中点为(4.5,2.5),则AC的中垂线为 y=x-2
过BC的直线为 y=x-3,BC的中点为（1.5,-1.5）,则BC的中垂线为 y=-x
AC的中垂线与BC的中垂线的交点即为圆心
-x=x-2,解得x=1
(1,-1)即为圆心,半径为圆心到任意一点的距离,即为5
方程为 (x-1)^2+(y+1)^2=25

Determine the centre of a circle which passes through points At which of the following points are lines passing through t Find the equation of the line OP 这么做这数学(find the equation of the tangent) Find the inflection points,if any,of the following function. Find the equation of the locus of the mid-point of the chord Find the equation of a line in standard form given: with the passing of the find the equation of the normal at the point (1,2)to the gra Find an equation of the tangent line to the graph of the fun 1.Find the equation of the tangent to the curve y=x^2,which 求翻译:Find the equation of the tangent and the normal respecti