यदि (|A|=4) और (|B|=3), तो (A) से (B) तक रिक्तेतर संबंधों की संख्या क्या होगी?
If (|A|=4) and (|B|=3), what is the number of non-empty relations from (A) to (B)?
Explanation opens after your attempt
Correct Answer
B. \(2^{12}-1\)
Concept
Total relations are \(2^{|A\times B|}=2^{12}\), and removing the empty relation gives \(2^{12}-1\). In exams, remember to subtract (1) for non-empty relations.
Why this answer is correct
The correct answer is B. \(2^{12}-1\). Total relations are \(2^{|A\times B|}=2^{12}\), and removing the empty relation gives \(2^{12}-1\). In exams, remember to subtract (1) for non-empty relations.
Exam Tip
कुल संबंध \(2^{|A\times B|}=2^{12}\) हैं और रिक्त संबंध हटाने पर \(2^{12}-1\) मिलते हैं। परीक्षा में non-empty के लिए (1) घटाना न भूलें।
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