# Homework: 8.1 Score: 0 of 1 pt ## 8.1.41 Let $U=\{a, b, c, d, e, f, 13,14,15,16,17,18\}, X=\{a, b, c, 13,14,15\}$, and $Y=\{b, d, f, 14,16,18\}$. List the members of the set $X^{\prime} \cap Y^{\prime}$, using set braces. $X^{\prime} \cap Y^{\prime}=[]$ (Use a comma to separate answers as needed.)
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Answer

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Step 1
: Find the complement of set X, denoted as $X'$.

X' = U - X = \{a, b, c, d, e, f, 13, 14, 15, 16, 17, 18\} - \{a, b, c, 13, 14, 15\} = \{d, e, f, 16, 17, 18\}
The complement of a set contains all the elements in the universal set that are not in the original set. In this case, the universal set is U and the original set is X.

Step 2
: Find the complement of set Y, denoted as $Y'$.

Y' = U - Y = \{a, b, c, d, e, f, 13, 14, 15, 16, 17, 18\} - \{b, d, f, 14, 16, 18\} = \{a, c, e, 13, 15, 17\}

Final Answer

X' \cap Y' = \{e, 17\}