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anonymous
 5 years ago
SET OPERATION
U={p,q,r,s,t,u,v,w}
A=r,s,t,u,w
B=p,q,r,s,t
C=q,s,u,w
find each set
CB
(AC)CB
(CB)A
AC
(AC)(CB)
anonymous
 5 years ago
SET OPERATION U={p,q,r,s,t,u,v,w} A=r,s,t,u,w B=p,q,r,s,t C=q,s,u,w find each set CB (AC)CB (CB)A AC (AC)(CB)

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shadowfiend
 5 years ago
Best ResponseYou've already chosen the best response.0So, generally speaking, you have to ask yourself, `what does set difference mean'. Subtracting a set X from a set Y, Y  Z, means producing a new set that includes all of the elements in Y that are not in Z. As an example, I'll do the first one (C  B); let me know if that helps: C  B C consists of q s u w B consists of p q r s t B has q and s which are both in C. So, C  B is q s u w without q and s, so it is u and w: C  B = {u, w}
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