I’m using calculator for this but I still don’t know
1 answer:
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The intersection of two sets, written 
is the set that contains all elements in BOTH of the original sets.
In this case:
Unless you are told somewhere else what a and b are equal to, none of the given choices is correct.
In this case:
Unless you are told somewhere else what a and b are equal to, none of the given choices is correct.