यदि (A), (B) और (C) के लिए \(A\subseteq B\subseteq C\) है, तो \(A\cup B\cup C\) किसके बराबर होगा?
If (A), (B) and (C) satisfy \(A\subseteq B\subseteq C\), then \(A\cup B\cup C\) is equal to what?
Explanation opens after your attempt
A. (C)
Concept
All sets are inside (C), so their union is (C). In a subset chain, the largest set gives the union.
Why this answer is correct
The correct answer is A. (C). All sets are inside (C), so their union is (C). In a subset chain, the largest set gives the union.
Exam Tip
सभी समुच्चय (C) के भीतर हैं, इसलिए उनका संघ (C) ही होगा। उपसमुच्चय श्रृंखला में सबसे बड़ा समुच्चय संघ देता है।
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