(a) Determine the convergence of the integral dx by comparing it to the integral - -+ 12x 19 da . 19 da is less than or equal to da 19 2 + 12x 19 Since 1 1 de converges converges also 19 x2+ 12x 19 (b) If the integral converges, find the number to which it converges. 1 19 2 + 12x