Question: Consider the following sets, where U represents a universal set: U = { 1 , 2 , { 1 } , { 2 } ,

Consider the following sets, where U represents a universal set:
U={1,2,{1},{2},{1,2}}A={1,2,{1}}B={{1},{1,2}}C={2,{1},{2}}.
Which one of the following statements is valid if x!inBC?
(Hint: Determine U-(BC).)
Select one:
a. xin{1,2}.
b. xinB and xinC.
c. xin{1}.
d. xinO?.
Consider the following sets, where U represents a universal set: U={1,2,{1},{2},{1,2}}A={1,2,{1}}B={{1},{1,2}}C={2,{1},{2}}.

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