Determine the order of the differential equation and whether the differential equation is linear or nonlinear. If the equation is nonlinear explain why. a. y" = ty + 1 dy = xy+cos y dx5 c. y" + y = 0 d'y dx b. d. e. dy +2 + 5y = 3 sin(2x) dx d20 do +7- +w sin 0 = 0, where y, w are constants dt dt