AP

MATHEMATICS · Multi-part · AP · Calculus BC · Infinite Sequences and Series · Infinite Sequences and Series

Problem

Let f(x)=∑n=0∞(x−2)n(n+1)!f(x)=\displaystyle \sum_{n=0}^{\infty} \dfrac{(x-2)^{n}}{(n+1)!}. (a) Determine the radius and interval of convergence for ff (include endpoint analysis). (b) Write a power series for f′(x)f'(x) centered at x=2x=2, listing the first three nonzero terms and the general term. (c) Determine the radius and interval of convergence for f′(x)f'(x) and compare your result with part (a). (d) Derive a closed‐form expression for f(k)(2)f^{(k)}(2) for any positive integer kk. Show all reasoning.

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