1. Tardigrade
  2. Question
  3. Mathematics
  4. If A = 1, 2, 3, 4 B = 3, 4, 5 C = 4, 5, 7, 8 find A - (B - C).

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Q. If $A = \{1, 2, 3, 4\}$; $B = \{3, 4, 5\}$; $C = \{4, 5, 7, 8\}$; find $A - (B - C)$.

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Solution:

$B - C = \{3,4, 5\} - \{4, 5, 7, 8\} = \{3\}$
$A - \{B - C\} = \{1, 2, 3, 4\} - \{3\} = \{1, 2, 4\}$