6. For each series below, decide whether it converges or not, and give your reasoning. (a) Eno 102! En=1 Vn37 /2" (d) En-in-1 =17 7. Find the radius of convergence of the following power series: (a) En log(n):" (b) Zin=1 na (c) Ex , n(n + 1)(n + 2)2" 8. Consider the power series 1 n=1 Let p (Greek letter rho) be its radius of convergence. Find p