Williams Barker
09/02/2023 · Primary School
d) \( (A \cup(B \cup C))^{\prime} \cap\left(A^{\prime} \cup(B \cap C)\right)^{\prime} \)
UpStudy ThothAI Solution
Tutor-Verified Answer
Step-by-step Solution
To simplify the expression \( (A \cup (B \cup C))^{\prime} \cap \left(A^{\prime} \cup (B \cap C)\right)^{\prime} \), we will use De Morgan's laws and properties of set operations.
1. **Apply De Morgan's Law**:
- The first part is \( (A \cup (B \cup C))^{\prime} \):
\[
(A \cup (B \cup C))^{\prime} = A^{\prime} \cap (B \cup C)^{\prime} = A^{\prime} \cap (B^{\prime} \cap C^{\prime}) = A^{\prime} \cap B^{\prime} \cap C^{\prime}
\]
- The second part is \( \left(A^{\prime} \cup (B \cap C)\right)^{\prime} \):
\[
\left(A^{\prime} \cup (B \cap C)\right)^{\prime} = (A^{\prime})^{\prime} \cap (B \cap C)^{\prime} = A \cap (B^{\prime} \cup C^{\prime})
\]
2. **Combine the results**:
Now we have:
\[
(A \cup (B \cup C))^{\prime} \cap \left(A^{\prime} \cup (B \cap C)\right)^{\prime} = (A^{\prime} \cap B^{\prime} \cap C^{\prime}) \cap (A \cap (B^{\prime} \cup C^{\prime}))
\]
3. **Distribute the intersection**:
We can distribute the intersection:
\[
= (A^{\prime} \cap B^{\prime} \cap C^{\prime}) \cap A \cap (B^{\prime} \cup C^{\prime})
\]
Since \( A^{\prime} \cap A = \emptyset \), the entire expression simplifies to:
\[
= \emptyset
\]
Thus, the final result is:
\[
\boxed{\emptyset}
\]
Quick Answer
The expression simplifies to the empty set.
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