(15 points) This problem is related to Problem 7.21 in the text. Given the differential equation v/ + 3v = /|cos(7 * 2)|u(t) Write the equation for using Euler's method to compute ( + k) from information of the function at time , i.e., you know (#) and initial conditions. v(t+h)=v(t) +h v(t) +h