Mathematics · Permutations and Combinations

r का मान ज्ञात कीजिए यदि 5 × 4Pr = 6 × 5Pr-1 है।

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r का मान ज्ञात कीजिए यदि 5 × 4Pr = 6 × 5Pr-1 है।

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r का मान ज्ञात कीजिए यदि 5 × 4Pr = 6 × 5Pr-1 है।

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