यदि \(A\subseteq U\) और (A'=U) है, तो (A) क्या होना चाहिए?
If \(A\subseteq U\) and (A'=U), what must (A) be?
Explanation opens after your attempt
Correct Answer
A. \(A=\varnothing\)
Concept
If (A') is the whole (U), then (A) cannot have any element. Hence \(A=\varnothing\).
Why this answer is correct
The correct answer is A. \(A=\varnothing\). If (A') is the whole (U), then (A) cannot have any element. Hence \(A=\varnothing\).
Exam Tip
यदि (A') पूरा (U) है, तो (A) में कोई अवयव नहीं हो सकता। इसलिए \(A=\varnothing\) है।
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