यदि (A), (B) और (C) समुच्चयों के लिए \(A\subseteq C\) और \(B\subseteq C\) है, तो (\(A\cup B\)\setminus C) क्या होगा?
If for sets (A), (B) and (C), \(A\subseteq C\) and \(B\subseteq C\), what will (\(A\cup B\)\setminus C) be?
Explanation opens after your attempt
A. \(\varnothing\)
Concept
When both (A) and (B) lie in (C), \(A\cup B\subseteq C\), so nothing remains outside (C). Subset facts can determine differences quickly.
Why this answer is correct
The correct answer is A. \(\varnothing\). When both (A) and (B) lie in (C), \(A\cup B\subseteq C\), so nothing remains outside (C). Subset facts can determine differences quickly.
Exam Tip
जब (A) और (B) दोनों (C) में हैं, तब \(A\cup B\subseteq C\), इसलिए बाहर कुछ नहीं बचता। उपसमुच्चय से अंतर तुरंत तय हो सकता है।
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