GO Electrical
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$\\ P=\begin{pmatrix} -10\\ -1\\ 3 \end{pmatrix}^{T} Q=\begin{pmatrix} -2\\ -5\\ 9 \end{pmatrix}^{T} R=\begin{pmatrix} 2\\ -7\\ 12 \end{pmatrix}^{T} are\ three\ vectors.\\ \\ \\ \\ \\ \\ An \ orthogonal \ set\ of \ vectors\ having\ a \ span \ that \ contains\ P,Q,R\ is\\ \\ \\ \\ \\ \\ \\  a) \begin{pmatrix} -6\\ -3\\ 6\\ \end{pmatrix}\begin{pmatrix} 4\\ -2\\ 3 \end{pmatrix}\ b)\begin{pmatrix} -4\\ 2\\ 4\\ \end{pmatrix}\begin{pmatrix} 5\\ 7\\ -11\\ \end{pmatrix}\begin{pmatrix} 8\\ 2\\ -3 \end{pmatrix}\\ \\ \\ c)\begin{pmatrix} 6\\ 7\\ -1 \end{pmatrix}\begin{pmatrix} -3\\ 3\\ -2 \end{pmatrix}\begin{pmatrix} 3\\ 9\\ -4 \end{pmatrix}\ d)\begin{pmatrix} 4\\ 3\\ 11 \end{pmatrix}\begin{pmatrix} 1\\ 31\\ 3 \end{pmatrix} \begin{pmatrix} 5\\ 3\\ 4 \end{pmatrix}$
in Linear Algebra by (120 points)

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