Single Choice

If A = {1, 2, 3} B = {4, 5}, then find A - B.

A{1, 4, 5}
B{1, 4, 3}
C{1, 2, 3}
Correct Answer
D{4, 5}

Solution

Given, $$A=\{1,2,3\}$$ and $$B=\{4,5\}$$.
Since $$A$$ and $$B$$ are two disjoint sets i.e. $$A\cap B=\phi$$ then we've,
$$A-B$$
$$=\{1,2,3\}$$.

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