![Let matrix A=[8 -2] [4 7] Let matrix B=2A. find b22.](/tpl/images/1540/5058/xpefu.jpg)
![B=2A=2\left[\begin{array}{cc}8&-2\\4&7\end{array}\right]=\left[\begin{array}{cc}16&-4\\8&14\end{array}\right]\\\\b_{22}=14](/tpl/images/0571/4773/70213.png)
Let matrix A=[8 -2]
[4 7]
Let matrix B=2A.
find b22.
...
Answers: 2
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