點(diǎn)P(-3,2,-1)關(guān)于平面xOy的對(duì)稱(chēng)點(diǎn)是________,關(guān)于平面yOz的對(duì)稱(chēng)點(diǎn)是________,關(guān)于平面zOx的對(duì)稱(chēng)點(diǎn)是________,關(guān)于x軸的對(duì)稱(chēng)點(diǎn)是________,關(guān)于y軸的對(duì)稱(chēng)點(diǎn)是________,關(guān)于z軸的對(duì)稱(chēng)點(diǎn)是________.

(-3,2,1)    (3,2,-1)    (-3,-2,-1)    (3,-2,1)    (3,2,1)    (3,-2,-1)
分析:根據(jù)空間直角坐標(biāo)系,點(diǎn)點(diǎn)對(duì)稱(chēng)性,直接求解對(duì)稱(chēng)點(diǎn)的坐標(biāo)即可.
解答:根據(jù)點(diǎn)的對(duì)稱(chēng)性,空間直角坐標(biāo)系的八卦限,分別求出點(diǎn)P(-3,2,-1)關(guān)于平面xOy的對(duì)稱(chēng)點(diǎn)是 (-3,2,1);關(guān)于平面yOz的對(duì)稱(chēng)點(diǎn)是:(3,2,-1);關(guān)于平面zOx的對(duì)稱(chēng)點(diǎn)是:(-3,-2,-1);關(guān)于x軸的對(duì)稱(chēng)點(diǎn)是:(3,-2,1);關(guān)于y軸的對(duì)稱(chēng)點(diǎn)是(3,2,1);關(guān)于z軸的對(duì)稱(chēng)點(diǎn)是 (3,-2,-1).
故答案為:(-3,2,1);(3,2,-1);(-3,-2,-1);(3,-2,1);(3,-2,-1).
點(diǎn)評(píng):本題是基礎(chǔ)題,考查空間直角坐標(biāo)系,對(duì)稱(chēng)點(diǎn)的坐標(biāo)的求法,考查空間想象能力,計(jì)算能力.
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