28．如图在中所对的圆心角为已知圆的半径为2cm并建立如图所示的直角坐标系． 1求圆心的坐标 2求经过三点的抛物线的解析式 Sketch Coloring Page

28．如图在中所对的圆心角为已知圆的半径为2cm并建立如图所示的直角坐标系． 1求圆心的坐标 2求经过三点的抛物线的解析式 Template

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tomski28．如图在中所对的圆心角为已知圆的半径为2cm并建立如图所示的直角坐标系． 1求圆心的坐标 2求经过三点的抛物线的解析式 coloring

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