試題詳解

15、Continue from Question 十四. Find the particular solution of the second order system in equation (2) with initial conditions x(0) = 2, x'(0) = 12, y(0) = 1 and y'(0) = 6. Which of the following statements is/are true?
(A) x(t) = 2e^6t.
(B) x(t) = 2 cos(6t) + 2 sin(6t).
(C) y(t) = e^6t.
(D) y(t) = cos(6t) + sin(6t).

(E) None of the above is true.