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ii)
 
ii)
 +
<math>A=\begin{bmatrix}
 +
-1      & frac{1}{2}    \\
 +
frac{1}{2}      &  -1
 +
\end{bmatrix}</math>

Revision as of 01:27, 21 May 2017

AC-2 2014

P1. (a)i) $ \begin{bmatrix} x_1(t)\\ x_2(t) \end{bmatrix}=\begin{bmatrix} -1 &-\frac{1}{2}\\ frac{1}{2} & -1 \end{bmatrix}\begin{bmatrix} x_1(t) \\ x_2(t) \end{bmatrix}+\begin{bmatrix} frac{x_0(t)}{2}\\ frac{x_3(t)}{2} \end{bmatrix}=\begin{bmatrix} -1 &-\frac{1}{2}\\ frac{1}{2} & -1 \end{bmatrix}\begin{bmatrix} x_1(t) \\ x_2(t) \end{bmatrix}+begin{bmatrix} frac{1}{2}&0 \\ 0& frac{1}{2} \end{bmatrix}\begin{bmatrix} x_0(t) \\ x_3(t) \end{bmatrix} $

ii) $ A=\begin{bmatrix} -1 & frac{1}{2} \\ frac{1}{2} & -1 \end{bmatrix} $

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