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sets na? (AuB)-(AnB)
uzair1565:
I can't understand
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AUB={1,2,3,4,6,8} :.n(AUB)=6
AnB={2,4} :. n(AnB)=2
n(AUB)-n(AnB)
=6-2
=4
AnB={2,4} :. n(AnB)=2
n(AUB)-n(AnB)
=6-2
=4
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