題組內容

1.A transfer function G(s) is given as61d6945312b2e.jpg, where R(s) and Y(s) stand for the input and the output, respectively. Define61d694747d64c.jpg, where L represents the Laplace transform operator.

(1) (10%) If r(t) = 2cos (t + θ) and y(t) = Acos (t + 45°), obtain values of Oand A.