【題目】將正六邊形ABCDEF放入平面直角坐標(biāo)系xOy后,若點(diǎn)A,B,E的坐標(biāo)分別為(ab),(-3,-1),(-ab),則點(diǎn)D的坐標(biāo)為____

【答案】(3,-1)

【解析】∵點(diǎn)A、E的坐標(biāo)分別為(a,b)、(-a,b)

A、E兩點(diǎn)關(guān)于y軸對稱,

B、D兩點(diǎn)也關(guān)于y軸對稱,
∵B(-3,-1),
∴D(3,-1)。
故答案是:3,-1)。

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