Permutations and Combinations Part 1

Section: Mathematics

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Question : 21 of 100

Marks: +1, -0

If ‌nPr=‌nPr+1 and ‌nCr=‌nCr−1, then the value of ris equal to:

[25 Jul 2021 Shift 2]

1
4
2
3

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