集合,已知A= X2-3x+2=0 B X2-ax+a-1=0 CX2-mx+2=0 AUB =A ,A∩C=C 求a和m

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集合,已知A= X2-3x+2=0 B X2-ax+a-1=0 CX2-mx+2=0 AUB =A ,A∩C=C 求a和m
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集合,已知A= X2-3x+2=0 B X2-ax+a-1=0 CX2-mx+2=0 AUB =A ,A∩C=C 求a和m
集合,已知A= X2-3x+2=0 B X2-ax+a-1=0 CX2-mx+2=0 AUB =A ,A∩C=C 求a和m

集合,已知A= X2-3x+2=0 B X2-ax+a-1=0 CX2-mx+2=0 AUB =A ,A∩C=C 求a和m
A{1,2}
吧1,2带到那俩式子里,就可以求了,记住元素的互异性,要满足AUB =A ,A∩C=C ,算出来之后带回去验证.