Sets — Basics & Operations

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1.
If A = {1, 2, 3} and B = {2, 3, 4}, then A union B is:
2.
The number of subsets of a set with n elements is:
3.
If A has 3 elements and B has 5 elements, the minimum number of elements in A union B is:
4.
The power set of {a, b} is:
5.
If A = {1, 2, 3, 4, 5} and B = {3, 4, 5, 6, 7}, then A intersection B is:

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