R174的知识精选

过点P(-8,-1),Q(5,12),R(17,4)三点的圆的圆心坐标是(  )A.(5,1)        ...
问题详情:过点P(-8,-1),Q(5,12),R(17,4)三点的圆的圆心坐标是()A.(5,1)                              B.(4,-1)C.(5,-1)                           D.(-5,-1)【回答】C知...
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