Question: 4. Consider the 2 x 2 matrices A and B where A = $$begin{bmatrix} 1 & 1 2 & -1 end{bmatrix}$$ ; B =

4. Consider the 2 x 2 matrices A and B where A = $$\begin{bmatrix} 1 & 1 \\ 2 & -1 \end{bmatrix}$$ ; B = $$\begin{bmatrix} 1 & 1 \\ -2 & 3 \end{bmatrix}$$.

If the vector x' = [2, -1] is transformed to y by y = Ax and if y is transformed to z by z = By, find the vectors y and z.

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