Subjective Type

If $$U=\left\{1,2,3,4,5,6,7,8,9 \right\}, A=\left\{1,2,3,4 \right\}, B=\left\{2,4,6,8 \right\}$$ and $$C=\left\{1,4,5,6 \right\}$$, find : $$B'$$

Solution

$$U=\left\{1,2,3,4,5,6,7,8,9 \right\}, A=\left\{1,2,3,4 \right\}, B=\left\{2,4,6,8 \right\}$$ and $$C=\left\{1,4,5,6 \right\}$$

$$B'=U-B=\left\{1,2,3,4,5,6,7,8,9 \right\}-\left\{2,4,6,8 \right\}$$=\left\{1,3,5,7,9 \right\}$$

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