Challenge for the Weak 2 - P1
Contributed by: cauchy
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Difficulty: 9
This problem is tagged with cw, cw2.
Evaluate the following limit:
$$
\lim_{n \to \infty} \sum_{k=1}^{n} \frac{2k + 1}{k^2(k+1)^2}
$$
A. $0$
B. $\frac{1}{3}$
C. $\frac{2}{3}$
D. $1$
E. $\frac{4}{3}$
Your answer should be a single capitalized letter, e.g., 'A'.
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