1. Show that every vector $\begin{bmatrix} x \\ y \end{bmatrix}$ in $\mathbb{R}^2$ can be written as a linear combination of $\begin{bmatrix} 1 \\ 0 \end{bmatrix}$, $\begin{bmatrix} 0 \\ 1 \end{bmatrix}$, and $\begin{bmatrix} 1 \\ 2 \end{bmatrix}$ in infinitely many ways.
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Step 1: We want to show that every vector in R2 can be written as a linear combination of (1,0), (0,1), and (1,2) in infinitely many ways. Show more…
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