Given the following firstorder linear differential equation: 121 E = E 5' (it v a} 1Write the given firstorder LDE in standard form. b) Solve for the general solution of your answer in part (2:) using method of solution for firstorder linear differential equations. Express your answer in explicit form. C] Solve for the particular solution of your result in part {b} assuming zero initial conditions, i.e., Vf) = D. d) Solve for 3 if the nal value of your answer in part (c) is equal to 128, i.e., ELI}; v(t) = 128