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Question Number 96617 by mathocean1 last updated on 03/Jun/20

$$GivenmatrixA\left[\begin{array}{c}ac\\ bd\end{array}\right]andB\left(\begin{array}{c}x\\ y_{}\end{array}\right).$$$$DeterminateA\times BandB\times A.$$

Commented by bobhans last updated on 03/Jun/20

$$\mathrm{B}\times \mathrm{A}\mathrm{undefine}$$

Commented by Tony Lin last updated on 03/Jun/20

$$\left[\begin{array}{cc}a& b\\ c& d\end{array}\right]\left[\begin{array}{c}x\\ y\end{array}\right]=\left[\begin{array}{c}ax+by\\ cx+dy\end{array}\right]$$

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