b) The initial temperature of a metal rod of length 1m is given by T(x, 0) = sin(x), 0<x<1 The temperatures of the rod at x = 0 and x = 1 are given by T(0,t) = 0, T(1,t) = 0, t≥0 Using a = 0.5, Ax = 0.25 and At = 0.02, determine the temperature distribution in the rod at t = 0.04 using the explicit method by numerically solving the parabolic heat conduction equation in (a).