In problem use a graphing utility to graph the indicated solution.

y(t) of Problem 13 for 0 ≤ t

Problem 13

In problem use the Laplace transform to solve the given initial-value problem. Use the table of Laplace transforms in Appendix III as needed.

y" + 16y = f(t), y(0) = 0, y'(0) = 1, where

Appendix III

cos f(1) = s 4t, 0 st < l0,