यदि \(A\subseteq C\) और \(B\subseteq C\), तो (\(A\cup B\)\setminus C) क्या होगा?
If \(A\subseteq C\) and \(B\subseteq C\), what is (\(A\cup B\)\setminus C)?
Explanation opens after your attempt
A. \(\varnothing\)
Concept
Every element of \(A\cup B\) lies in (C), so removing (C) leaves nothing. Hence the result is \(\varnothing\).
Why this answer is correct
The correct answer is A. \(\varnothing\). Every element of \(A\cup B\) lies in (C), so removing (C) leaves nothing. Hence the result is \(\varnothing\).
Exam Tip
\(A\cup B\) का हर तत्व (C) में है, इसलिए (C) हटाने पर कुछ नहीं बचेगा। अतः परिणाम \(\varnothing\) है।
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