如图,平面直角坐标系中,点A(-3,0),点B(0,3),点C为X轴正半轴上一动点,过点A作AD⊥BC交Y轴于点E(1)若点C的坐标为(2,0),试求点E的坐标(2)若点C在X轴正半轴上运动,且OC<3,其他条件不变,连接OD,
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