यदि \(A\subseteq U\), (|A|=4), और (|A'|=5) है, तो \(\mathcal{P}(U)\) कितना होगा?
If \(A\subseteq U\), (|A|=4), and (|A'|=5), what is \(\mathcal{P}(U)\)?
Explanation opens after your attempt
Correct Answer
B. (512)
Concept
(|U|=|A|+|A'|=4+5=9), so (|\mathcal{P}(U)|=29=512). In exams, (A) and (A') together form the whole (U).
Why this answer is correct
The correct answer is B. (512). (|U|=|A|+|A'|=4+5=9), so (|\mathcal{P}(U)|=29=512). In exams, (A) and (A') together form the whole (U).
Exam Tip
(|U|=|A|+|A'|=4+5=9), इसलिए (|\mathcal{P}(U)|=29=512)। परीक्षा में (A) और (A') मिलकर पूरा (U) बनाते हैं।
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