Given sets A = { 1,,2,,3} ,,B = { 3,4} , C = {4, 5, 6} , then A cup (B cap C) is

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1.Set Theory

easy

Given the sets $A = \{ 1,\,2,\,3\} ,\,B = \{ 3,4\} , C = \{4, 5, 6\}$, then $A \cup (B \cap C)$ is

A

$\{3\}$

B

$\{1, 2, 3, 4\}$

C

$\{1, 2, 4, 5\}$

D

$\{1, 2, 3, 4, 5, 6\}$

Solution

(b) $B \cap C = \{ 4\} $, $A \cup (B \cap C) =$ $\{1, 2, 3, 4\}.$

Standard 11

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