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If $X=\{a, b, c, d\}$ and $Y=\{f, b, d, g\}$, find
(i) $X-Y$
(ii) $\boldsymbol{Y}-\boldsymbol{X}$
(iii) $X \cap Y$
(i) $X-Y$
(ii) $\boldsymbol{Y}-\boldsymbol{X}$
(iii) $X \cap Y$
Solution:
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Verified Answer
(i) $X-Y=\{a, b, c, d\}-\{f, b, d, g\}=\{a, c\}$
(ii) $Y-X=\{f, b, d, g\}-\{a, b, c, d\}=\{f, g\}$
(iii) $X \cap Y=\{a, b, c, d\} \cap\{f, b, d, g\}=\{b, d\}$
(ii) $Y-X=\{f, b, d, g\}-\{a, b, c, d\}=\{f, g\}$
(iii) $X \cap Y=\{a, b, c, d\} \cap\{f, b, d, g\}=\{b, d\}$
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