If A = {1, 2, 5} and B = {3, 4, 5, 9}, then (A \Delta B) is... | Mathematics | SolveeIt | Solveeit

Today, August 18

Question

If A = {1, 2, 5} and B = {3, 4, 5, 9}, then $A \Delta B$ is equal to

A

{1, 2, 5, 9}

B

{1, 2, 3, 4, 9}

C

{1, 2, 3, 4, 5, 9}

D

None of these

Answer

{1, 2, 3, 4, 9}

Explanation

Solution

$A \Delta B = (A - B) \cup (B - A)$ $= \\{1, 2\\} \cup \\{3, 4, 9\\}$ $= \\{1, 2, 3, 4, 9\\}$