If A = {2, 3, 7, 9}, B = {3, 7, 8}, then \[A\,\Delta \,B\]is

1.	If A = {2, 3, 7, 9}, B = {3, 7, 8}, then \[A\,\Delta \,B\]is
A.	{3, 7}
B.	{2, 8, 9}
C.	{2, 3, 7, 8, 9}
D.	{3, 8, 9}
Answer» C. {2, 3, 7, 8, 9}

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If A = {2, 3, 7, 9}, B = {3, 7, 8}, then \[A\,\Delta \,B\]is

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