You are correct.
List the elements of each set. Show all your work.
A = {1,2,5,6}
B = {2,5,7}
C= {1,3,5,7,9}
A ⊕ B and A ⊕ C
I am assuming the answer is {1,6,7} for A ⊕ B and {2,3,6,7,9} for A ⊕ C
Which includes everything that is not intersected.
Is this correct?