Mathematics · Permutations and Combinations

यदि nPr = nPr+1 और nCr = nCr-1 हो, तो r का मान बराबर है:

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यदि nPr = nPr+1 और nCr = nCr-1 हो, तो r का मान बराबर है:

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यदि nPr = nPr+1 और nCr = nCr-1 हो, तो r का मान बराबर है:

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