यदि (12) distinct objects को (2,2,4,4) आकार के unlabelled groups में बांटना हो, तो extra division कौन-सी होगी?
If (12) distinct objects are divided into unlabelled groups of sizes (2,2,4,4), what is the extra division?
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A. \(2!\cdot2!\)
Simple Explanation
दो size (2) groups और दो size (4) groups की अदला-बदली duplicate देती है। परीक्षा में equal-size unlabelled groups के factorials से extra divide करें। / Interchanging the two size (2) groups and the two size (4) groups gives duplicates. In exams divide extra by factorials of equal-size unlabelled groups.
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