Asked by Newman
What are the following sets?
a) ({a,b}∪{a,c})×({a,c,d}∩{b,d,e})
b) {a, {b, c}} ∩ {b, {a, c}}
a) ({a,b}∪{a,c})×({a,c,d}∩{b,d,e})
b) {a, {b, c}} ∩ {b, {a, c}}
Answers
Answered by
Steve
{a,b}∪{a,c} = {a,b,c}
{a,c,d}∩{b,d,e} = {d}
{abc}×{d} = {ad,bd,cd}
In part b, since the two sets have no elements in common, the intersection is empty.
{a,c,d}∩{b,d,e} = {d}
{abc}×{d} = {ad,bd,cd}
In part b, since the two sets have no elements in common, the intersection is empty.
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