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Mathematics 23 Online
OpenStudy (anonymous):

help please!!

OpenStudy (anonymous):

|dw:1386553680645:dw|

OpenStudy (anonymous):

multiply all entries by 2

OpenStudy (anonymous):

Is that a matrix?

OpenStudy (anonymous):

2A = 2*I*A since I = 1 in matrix form \[2 I A = \left[\begin{matrix}2 & 0 \\ 0 & 2\end{matrix}\right]\left[\begin{matrix}1 & 4 \\ 5 & 2\end{matrix}\right]\]

OpenStudy (anonymous):

so |dw:1386554894304:dw| ?

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