Determine A100 with \boldsymbol{A}=\left[\begin{array}{cc}

2 & -1 \\

-1 & 2

\end{array}\right] using eigendecomposition techniques. 2)Find the C, D and E coefficients of the best parabola C + Dt + Et² to fit the values of b = (0; 0; 1; 0; 0) at the discrete time instances t = (-2;-1; 0; 1; 2).