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uranmaximum [27]
2 years ago
8

Help me please, will give brainliest

Mathematics
1 answer:
ANTONII [103]2 years ago
6 0

A\left[\begin{array}{ccc}1&0&5\\0&-5&7\\0&3&-4\end{array}\right]

B\left[\begin{array}{ccc}3&-5&3\\2&3&1\\4&1&-3\end{array}\right]

Now,\\\\2B-A\\\\2\left[\begin{array}{ccc}3&-5&3\\2&3&1\\4&1&-3\end{array}\right]-\left[\begin{array}{ccc}1&0&5\\0&-5&7\\0&3&-4\end{array}\right]\\\\=\left[\begin{array}{ccc}6&-10&6\\4&6&2\\8&2&-6\end{array}\right] -\left[\begin{array}{ccc}1&0&5\\0&-5&7\\0&3&-4\end{array}\right]\\\\=\left[\begin{array}{ccc}5&-10&1\\4&11&-5\\8&-1&-2\end{array}\right]

Row 1 column 2(a12)=-10

Hence,-10 is your answer.

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