Question

1- Resolva a 1000 equacão matricial Dream 2x A+ B, em que A= 3 3 2x+A+B 4 1 2 l​

Answer 1

Explicação passo-a-passo:

2x+A+B

$2x + \left(\begin{array}{} 1& 3\\ - 5 & 2\\ \end{array}\right) + \left(\begin{array}{} 3& - 1\\ -1 & 0\\\end{array}\right) = 0 \\\\2x +\left(\begin{array}{}   (1 + 3)& (3 - 1)\\ (- 5 - 1) & (2 + 0)\\\end{array}\right) = 0</p><p> \\ \\2x + \left(\begin{array}{} 4& 2\\ - 6 & 2\\\end{array}\right) = 0 \\ \\ 2x = -(8 - ( - 12)) \\ \\ 2x = -(8 + 12) \\ \\ 2x = - 20 \\ \boxed{x = - 10}$