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【题目】将正六边形ABCDEF放入平面直角坐标系xOy后,若点ABE的坐标分别为(ab),(-3,-1),(-ab),则点D的坐标为____

【答案】(3,-1)

【解析】∵点A、E的坐标分别为(a,b)、(-a,b)

A、E两点关于y轴对称,

B、D两点也关于y轴对称,
∵B(-3,-1),
∴D(3,-1)。
故答案是:3,-1)。

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