If $A = \{1, 2, 3, 4\}$ and $B = \{3, 4, 5, 6\}$, then $A - B$ is

If $A = \{1, 2, 3, 4\}$ and $B = \{3, 4, 5, 6\}$, then $A - B$ is
  1. $\{1, 2\}$
  2. $\{5, 6\}$
  3. $\{3, 4\}$
  4. $\{1, 2, 5, 6\}$

Solution

$A - B$ = elements in $A$ not in $B$ = $\{1, 2\}$.

Asked in: MH-SSC-9

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