(-1)"n For positive integer n, let a, = 3n (a) Determine whether the sequence {a„} is convergent. 00 (b) If f(x) = £ anx", specify the domain of f. %3D n=1 Based on your answer in Question 2(b),...

question b & c

Extracted text: (-1)"n For positive integer n, let a, = 3n (a) Determine whether the sequence {a„} is convergent. 00 (b) If f(x) = £ anx", specify the domain of f. %3D n=1 Based on your answer in Question 2(b), explain whether the series f(4) con- verges or diverges. (c)