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[obm-l] =?iso-8859-1?Q?d=FAvidazinha!!!!?=
TSD
Sat, 10 Apr 2004 14:47:48 -0700
calcule:
n(A U B) = 24
n(A "c"B ) = 4
n(B U C) = 16
n(A - C) = 11
n(B - C)= 10 , calcule
a) n(A - B )
b)n(A "c" B "c" C )
c) n(B - ( C U A ))
d)n(A "c" B) - C )
e) n(B - A(A U B))
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