Question

Please ajutatatima !!!!????

Answer 1

Răspuns:

Explicație pas cu pas:

1.A×B=

$\left[\begin{array}{ccc}2&1\\1&2\\\end{array}\right] \cdot \left[\begin{array}{ccc}-3&-4\\-4&-3\\\end{array}\right]=\left[\begin{array}{ccc}-10&-11\\-11&-10\\\end{array}\right]$

B×A=

$\left[\begin{array}{ccc}-3&-4\\-4&-3\\\end{array}\right]\left[\begin{array}{ccc}2&1\\1&2\\\end{array}\right] \cdot=\left[\begin{array}{ccc}-10&-11\\-11&-10\\\end{array}\right]$

2. B²=B×B=

$\left[\begin{array}{ccc}1&0&1\\0&1&0\\1&0&1\end{array}\right] \cdot \left[\begin{array}{ccc}1&0&1\\0&1&0\\1&0&1\end{array}\right] =\left[\begin{array}{ccc}2&0&2\\0&1&0\\2&0&2\end{array}\right]$

Answer 2

Răspuns:

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