medium · GMAT Quant
A financial index evaluates a sequence defined by T_k = dfrac1k(k+2) for k = 1, 2, 3, dots, N.
What is the sum of the first 40 terms of this sequence, sum_k=1^40 T_k?
- dfrac4184
- dfrac625861
- dfrac820861
- dfrac1250861
- dfrac4041
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