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Sum minus Half of n²

Difficulty: Easy · Topics: Calculus, Limits, Sequences

Yig‘indi minus n² ning yarmi

Evaluate:

lim n→∞(1)/(n+2)≤ft[(1+2+3+·s+(n-1))-fracn^22 ]

Hisoblang:

lim n→∞(1)/(n+2)≤ft[(1+2+3+·s+(n-1))-fracn^22 ]