Solution 2.9.4.8 F(s)= A s + M s ; j3 + M s ; j3 : A = sF(s) j s=0 =  1 s 2 +9  j s=0 = 1 9 M = (s ; j3)F(s) j s=j3 =  1 s(s + j3)  j s=j3 = 1 6  18 : f(t)=f(1=9)[1+ cos(3t + )]g1(t): 1