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OpenStudy (anonymous):
Defined or undefined matrix?
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OpenStudy (anonymous):
\[\left[\begin{matrix}4 & 5 \\ 9 & -2\end{matrix}\right]\left[\begin{matrix}1 & 7 \end{matrix}\right]\]
OpenStudy (anonymous):
Defined; 2x2 Defined; 2x1 Defined; 1x2 Undefined? wouldn't it be defined 2x1
OpenStudy (anonymous):
@helpme1.2
OpenStudy (anonymous):
|dw:1400125359041:dw|
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