Section 3: Set Operations

Practice union, intersection, difference, complement, and the role of the universe.

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0 / 5

Question 1 / 5

Let $A=\{1,2,3\}$ and $B=\{3,4\}$ . What is $A\cup B$ ?

\{4\}

\{1,2,3,4\}

\{3\}

\{1,2\}

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