Hi, below are my questions. The question for each of these is stated in the image below.

Problem 18.3. Find the radius and the interval of convergence for the following Power Series: (1) S too (-1)"(x-1) 1=1 2n 11/ (2) E too (-1)"r .3n 1=1 (2n+1)! (3) 2 +oo n-+3n 1=1 (x - 1)". (4) E +00 (-1)"(x-2)" 7=1