If \( \Large E=\{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 \},\ A=\{1, 2, 3, 4, 5 \},\ B=\{2, 4, 6, \} \) then find \( \Large \left(A\cup B\right)' \)

A) \( \Large \{ 8, 9 10 \} \)
B) \( \Large \{ 7, 8, 9 10 \} \)

C) \( \Large \{ 6, 7, 8, 9, 10 \} \)
D) cannot be found

Correct answer:
A) \( \Large \{ 8, 9 10 \} \)

Description for Correct answer:
\( \Large E = \{ 1,2,3,4,5,6,7,8,9,10 \} \)

\( \Large A = \{ 1,2,3,5 \},\ B = \{ 2,4,6,7 \} \)

\( \Large A\cup B = \{ 1,2,3,4,5,6,7 \} \)

\( \Large \left(A\cup B\right)' = \{ 8,9,10 \} \)

Please provide the error details in above question

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