Mathematics, 27.06.2019 13:40 ematthews1058
Which matrix is the product of a 3 × 3 identity matrix and the scalar 3?
Answers: 2
![\left[\begin{array}{ccc}3&0&0\\0&3&0\\0&0&3\end{array}\right]](/tpl/images/0023/5163/48159.png)
![\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right]](/tpl/images/0023/5163/edbcb.png)
![3\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right]](/tpl/images/0023/5163/7be16.png)
![\left[\begin{array}{ccc}3*1&0&0\\0&3*1&0\\0&0&3*1\end{array}\right] = \left[\begin{array}{ccc}3&0&0\\0&3&0\\0&0&3\end{array}\right]](/tpl/images/0023/5163/15fbe.png)
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Which matrix is the product of a 3 × 3 identity matrix and the scalar 3?...
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