Mathematics, 27.05.2020 02:01 alleshia2007
Which matrix can be multiplied to the left of a vector matrix to produce another vector matrix?
Answers: 3
![A=\left[\begin{array}{ccc}2&3\\4&5\end{array}\right]](/tpl/images/0666/5796/b8e64.png)
![B = \left[\begin{array}{ccc}2\\7\end{array}\right]](/tpl/images/0666/5796/1fa00.png)
![A * B =\left[\begin{array}{ccc}2&3\\4&5\end{array}\right] \left[\begin{array}{ccc}2\\7\end{array}\right]](/tpl/images/0666/5796/f3ed2.png)
![A * B =\left[\begin{array}{ccc}(2*2) + (3* 7)\\ (4*2) + (5 * 7)\end{array}\right]](/tpl/images/0666/5796/6f117.png)
![A * B =\left[\begin{array}{ccc}(4) + (21)\\ (8) + (35)\end{array}\right]](/tpl/images/0666/5796/e37b7.png)
![A * B =\left[\begin{array}{ccc}25\\ 43\end{array}\right]](/tpl/images/0666/5796/9fc55.png)
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