Solution 2.9.4.6 F(s)= A s +1 + B s +5 : A = [[(s +1)F(s)]] s=;1 =  6 s +5  s=;1 = 3 2 B = [[(s +5)F(s)]] s=;5 =  6 s +1  s=;5 = ; 3 2 f(t)=[1:5e ;t ;1:5e ;5t ]1(t): 1