Using the following system of ODES (first order ODE set). xi = x2 x2 = -2 cos(t) - 4 cos(2t) How do you identify the initial condition for each equation? How do you apply Euler's method with four uniform intervals to solve for the first order ODE set on the time domain (0,tr) Where tr = 1+ (2.67/10) And initial conditions x = 4 and vx = 0 m/s %3D Full working and steps please. I don't understand how to do this.