My Math Forum Fundamental LA Question

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 February 16th, 2013, 10:20 PM #1 Newbie   Joined: Feb 2013 Posts: 1 Thanks: 0 Fundamental LA Question Refering to the question, http://upload.lsforum.net/users/public/m51266Q1j121.jpg Ans = B= 2 8 -1 -4 Yet the ans does not agree with the so-called '2x3' from the question!
 February 17th, 2013, 12:49 PM #2 Member   Joined: Jan 2013 Posts: 93 Thanks: 0 Re: Fundamental LA Question Most likely there is a misprint, either in the question or in the answer. $B$ can be a matrix with 2 rows and any number of columns; each column of $B$ will be of the form $\begin{pmatrix}2x \\\\ -x \end{pmatrix}$ where $x$ is any nonzero real number.

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