Question

If A = {1,3,6, 10}, B = {1,3,5,7,9} Find A ∆ B,​

Answer 1

$\underline{\bold{Answer}}$

A ∆ B = {6, 10,5,7,9}

$\underline{\bold{Solution:-}}$

Formula of Symmetry

• ∆ = (A-B) ∪ (B-A)

$\underline{\bold{Given :-}}$

• A = {1,3,6, 10}
• B = {1,3,5,7,9}

$\underline{\bold{Finding \: the \:value\: of\: A - B\: and\: B- A }}$

A - B = {1,3,6,10} - {1,3,5,7,9}

A - B = {6, 10}

Again, B - A = {1,3,5,7,9} - {1,3,6,10}

B - A = {5,7,9}

$\underline{\bf{Put\: these\: values\: in\: Formula} }$

∆ = (A-B) ∪ (B-A)

∆ = {6, 10} ∪ (5, 7,9)

∆ = {6, 10,5,7,9} Ans.

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