If A = [2,4,3,2] and B = [-2,5,3,4], then find 3A - B. A = \(\begin{

1.	If A = [2,4,3,2] and B = [-2,5,3,4], then find 3A - B. A = \(\begin{bmatrix}2&4\\3&2\end{bmatrix}\), B = \(\begin{bmatrix}-2&5\\3&4\end{bmatrix}\)
Answer» A = \(\begin{bmatrix}2&4\\3&2\end{bmatrix}\), B = \(\begin{bmatrix}-2&5\\3&4\end{bmatrix}\) \(\therefore\) 3A - B = 3\(\begin{bmatrix}2&4\\3&2\end{bmatrix}\) - \(\begin{bmatrix}-2&5\\3&4\end{bmatrix}\) = \(\begin{bmatrix}6&12\\9&6\end{bmatrix}\) - \(\begin{bmatrix}-2&5\\3&4\end{bmatrix}\) = \(\begin{bmatrix}6-(-2)&12-5\\9-3&6-4\end{bmatrix}\) = \(\begin{bmatrix}8&7\\6&2\end{bmatrix}\)

If A = [2,4,3,2] and B = [-2,5,3,4], then find 3A - B. A = \(\begin{bmatrix}2&4\\3&2\end{bmatrix}\), B = \(\begin{bmatrix}-2&5\\3&4\end{bmatrix}\)

Answer»

A = \(\begin{bmatrix}2&4\\3&2\end{bmatrix}\), B = \(\begin{bmatrix}-2&5\\3&4\end{bmatrix}\)

\(\therefore\) 3A - B = 3\(\begin{bmatrix}2&4\\3&2\end{bmatrix}\) - \(\begin{bmatrix}-2&5\\3&4\end{bmatrix}\)

= \(\begin{bmatrix}6&12\\9&6\end{bmatrix}\) - \(\begin{bmatrix}-2&5\\3&4\end{bmatrix}\)

= \(\begin{bmatrix}6-(-2)&12-5\\9-3&6-4\end{bmatrix}\) = \(\begin{bmatrix}8&7\\6&2\end{bmatrix}\)

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If A = [2,4,3,2] and B = [-2,5,3,4], then find 3A - B. A = \(\begin{bmatrix}2&amp;4\\3&amp;2\end{bmatrix}\), B = \(\begin{bmatrix}-2&amp;5\\3&amp;4\end{bmatrix}\)

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If A = [2,4,3,2] and B = [-2,5,3,4], then find 3A - B. A = \(\begin{bmatrix}2&4\\3&2\end{bmatrix}\), B = \(\begin{bmatrix}-2&5\\3&4\end{bmatrix}\)