In $\xi_1=\{1,2,3,4,5,6\}, A=\{2,4,6\}.$ Find $A'$. The universal set changes to\[ \xi_2=\{1,2,\

Question

In $\xi_1=\{1,2,3,4,5,6\}, A=\{2,4,6\}.$ Find $A'$. The universal set changes to$$ \xi_2=\{1,2,\ldots,8\}, $$ but $A$ stays unchanged. Find the new $A'$. Explain why the complement changed.

Accepted Answer

(a) $\{1,3,5\}$ (b) $\{1,3,5,7,8\}$ (c) Complements depend on the universe

Sets

Sets

Solution:

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