(a) Set up the integral for the arc.length of the curve y = ed from (0,1) to (1, e). (b) Set up the integral for the arc length of the curve y = 2e*)2 -1 from (1,1) to (3,2e -1). (c) Without computing the integrals in (a) and (b), use a substitution to show that the arc length obtained in (b) is twice the arc length obtained in (a)