Determine whether the series converges, and if so find its sum. (k + 3)(k + 4) (Enter DNE if the sum does not exist.)Consider the series Determine whether the series converges, and if it converges, determine its value. Converges {yin}: D Value if convergent (blank otherwise}: D Suppose that the nth partial sum of the series _ _] an is Sn = 3n+2 On+12 - Find a (not very pretty) expression for an when n > 1: What is the value of _ _1 an