Please show steps and explain thank you!

Circle the correct answer in each part below and show all the steps to justify your choices. 21]\" \"n+1 (a) True or False: If }.im1,,_,mJ = %, then 2:11 on converges absolutely. (b) The radius of convergence of 2:11 92%.}: is: (a; (ii)2 (iii)3 (iv)oo