AP

MATHEMATICS · Single correct · AP · Calculus AB · Limits and Continuity · Limits and Continuity

Problem

\lim_{x \rightarrow 2} \left( \sum_{n=1}^9 \frac{x}{n(n+1)x^2 + 2(2n+1)x + 4} \right)

is equal to (a)

\frac{9}{44}

(b)

\frac{5}{24}

(c)

\frac{1}{5}

(d)

\frac{7}{36}