Question

Find the set Upper A intersect Upper B.
Upper U equals StartSet 1, 2, 3, 4, 5, 6, 7 EndSet
Upper A equals StartSet 1, 2, 3, 4 EndSet
Upper B equals StartSet 1, 2, 6 EndSet
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Part 1
Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.
A.
Upper A intersect Upper B equalsStartSet nothing EndSet
  
​(Use a comma to separate answers as​ needed.)
B.
Upper A intersect Upper B is the empty set.

Answer 1

A ∩ B = {1, 2}