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

MCQ

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

A
$\{1, 4, 5\}$
B
$\{1, 4, 3\}$
✓
$\{1, 2, 3\}$
D
$\{4, 5\}$

✓

Answer

Correct option: C.

$\{1, 2, 3\}$

Given, $A = {1, 2, 3}$ and $B = {4, 5}$.
Since $A$ and $B$ are two disjoint sets
i.e. $\ce{A ∩ B} = ϕ$ then we've,
$\ce{A − B}$
$= \{1, 2, 3\}.$

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