Intersect and conjuction

Let U={1,2,3,4,5,6}
A={1,3,5}
B={2,4,6}
C={3,6}

Find the following.
1. )AUB
2. )A'UB'

Result

X = (Correct answer is: {1,2,3,4,5,6}) Wrong answer
Y = (Correct answer is: {1,2,3,4,5,6}) Wrong answer

Solution:

Solution in text X =
Solution in text Y =

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