यदि \(A\subseteq B\), (n(A)=3), और (n(B)=5), तो (P(B)-P(A)) में कितने अवयव होंगे?
If \(A\subseteq B\), (n(A)=3), and (n(B)=5), how many elements are in (P(B)-P(A))?
Explanation opens after your attempt
Correct Answer
C. (24)
Concept
(n(P(B))=32) and (n(P(A))=8), so the difference has (32-8=24) elements. Since \(A\subseteq B\), \(P(A)\subseteq P(B)\).
Why this answer is correct
The correct answer is C. (24). (n(P(B))=32) and (n(P(A))=8), so the difference has (32-8=24) elements. Since \(A\subseteq B\), \(P(A)\subseteq P(B)\).
Exam Tip
(n(P(B))=32) और (n(P(A))=8), इसलिए अंतर में (32-8=24) अवयव हैं। \(A\subseteq B\) होने से \(P(A)\subseteq P(B)\) है।
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