hard · GMAT Quant
A manufacturing plant tracks the failure probability increment p_n for machine operational cycle n, where n ≥ 1, given by p_n = dfrac2n+1n^2(n+1)^2.
What is the total cumulative failure probability increment sum_n=1^N p_n after N operational cycles?
- dfracN(N+2)(N+1)^2
- dfracN^2(N+1)^2
- dfrac2N+1(N+1)^2
- dfracN+2(N+1)^2
- dfracN^2+1(N+1)^2,
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