Problem 4: Solve by hand. For the following state-space system: 0 0.5 x 0 2 u -4 -2 X 0 Иг with initial conditions х u X2 + 0 1 х2 0 Uz 1. Find the transfer function 2. Solve for 3)(t) = x/()]) Y(s) ¥ ($) U(s) =G(s). for a unit step in both inputs.