Answer Happy

10.4
At Determine e by first finding a fundamental matrix X(t) for x' = Ax and then using the formula e A = First, find X(t). Choose the correct answer below. OA. X(t)= 31 25 3 OB. X(t)= OC. X(t)= O D. X(t)= e Next, find e At = le At - e 5e - e 5 e e 5e - 2t - 2t - 2t - 2t 2t - 2t (5+1) e 5e St 8t cos 8t cos 8t 5 e 2t (1-1) e-21 - e 8t - 2t 5e 8t e e 8t 8t 5 est 8t sin 8t sin 8t At = X(t)X(0)-¹.