Question

Determine A if:

A = E1i . E2i . B

Answer 1

\[\left[\begin{matrix}1 & 0 & 0 \\ 0 & -2 & 0\\0 & 0&1 \end{matrix}\right]\]

Answer 2

Above is the matrixE1i

Answer 3

E2i=
\[\left[\begin{matrix}1 & -0.5 &0 \\ 0 & 1&0\\ 0&0&1\end{matrix}\right]\]

Answer 4

and B =
\[\left[\begin{matrix}3 & 2&1 \\ -2 & 0&1\\ 3&1&1\end{matrix}\right]\]