Mathematics · Permutations and Combinations

If nPr = nPr+1 and nCr = nCr-1, then the value of r is equal to:

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If nPr = nPr+1 and nCr = nCr-1, then the value of r is equal to:

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If nPr = nPr+1 and nCr = nCr-1, then the value of r is equal to:

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