Question

Решите, срочно . Вышка

Answer 1

3B=$\left[\begin{array}{cc}3&3\\9&6\\\end{array}\right]$

A-3B =$\left[\begin{array}{cc}1&2\\-7&-5\\\end{array}\right]$

(A-3B)^2=$\left[\begin{array}{cc}1&4\\49&25\\\end{array}\right]$

4(A-3B)^2=$\left[\begin{array}{cc}4&16\\196&100\\\end{array}\right]$

3C^T=$\left[\begin{array}{cc}9&6\\9&15\\\end{array}\right]$

Ответ: $\left[\begin{array}{cc}-5&10\\187&85\\\end{array}\right]$