Permutations and Combinations Part 1

Section: Mathematics

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Question : 18 of 100

Marks: +1, -0

If‌‌1‌P1+2.‌2p2+3.‌3P3+...+15.‌15P15=‌qPr−s,0≤s≤1,

then ‌q+sCr−s is equals to

[26 Aug 2021 Shift 1]

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