东北大学matlab作业

/2*exp(-5*t)+1/2*t^2*exp(-3*t))*sin(t*(-3/2*t*exp(-3*t)+9/2*t^2*exp(-3*t)-2*exp(-3*t)))+(1/2*exp(-5*t)-1/2*exp(-3*t)+t*exp(-3*t))*sin(t*(9/2*t*exp(-3*t)-3*exp(-3*t)))+(1/2*t*exp(-3*t)+1/2*t^2*exp(-3*t))*sin(t*(9/2*t*exp(-3*t)+6*exp(-3*t)))+(1/2*exp(-5*t)-1/2*exp(-3*t)-1/2*t*exp(-3*t)+1/2*t^2*exp(-3*t))*sin(t*(-3*t*exp(-3*t)-9/2*t^2*exp(-3*t)+5*exp(-3*t))),(1/2*exp(-3*t)-1/2*t*exp(-3*t)+1/2*exp(-5*t)+1/2*t^2*exp(-3*t))*sin(t*(25/2*exp(-5*t)-1/2*exp(-3*t)-21/2*t*exp(-3*t)+9/2*t^2*exp(-3*t)))+(1/2*exp(-5*t)-1/2*exp(-3*t)+t*exp(-3*t))*sin(t*(-15/2*exp(-3*t)+9/2*t*exp(-3*t)+25/2*exp(-5*t)))+(1/2*t*exp(-3*t)+1/2*t^2*exp(-3*t))*sin(t*(3/2*exp(-3*t)+9/2*t*exp(-3*t)-25/2*exp(-5*t)))+(1/2*exp(-5*t)-1/2*exp(-3*t)-1/2*t*exp(-3*t)+1/2*t^2*exp(-3*t))*sin(t*(8*exp(-3*t)+6*t*exp(-3*t)-9/2*t^2*exp(-3*t)))]