(n) distinct objects में से कोई object छोड़े बिना उन्हें (2) non-empty labelled boxes में बांटने की संख्या क्या है?
What is the number of ways to distribute (n) distinct objects into (2) non-empty labelled boxes without leaving any object?
Explanation opens after your attempt
A. \(2^n-2\)
Simple Explanation
Total \(2^n\) assignments में दोनों all-in-one empty-box cases invalid हैं। परीक्षा में labelled boxes हों तो empty cases अलग से घटाएं। / From total \(2^n\) assignments, the two all-in-one empty-box cases are invalid. In exams subtract empty cases separately for labelled boxes.
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