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If A=a,c,e an...

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If $A = {a, c, e} and B = {a, b, c, d, e, f}$ then the value of $A Δ B$ is

A

{b, d, f}

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B

{b}

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C

{a, c, e}

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D

{d, f}

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Solution

The correct option is A ${b, d, f}$
We see that $A \subseteq B$ , so $A Δ B = B - A$

According to the idempotent law for symmetric difference of sets.
$A Δ B = B - A = {a, b, c, d, e, f} - {a, c, e} = {b, d, f}$

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