[beginarrayll2&11&2endarray]

Perguntas Frequentes

• Calcule o determinante $\left[\begin{array}{ll}2& 1\\ 1& 2\end{array}\right]$

  

  $$3$$

• Encontre a matriz inversa $\left[\begin{array}{ll}2& 1\\ 1& 2\end{array}\right]$

  

  $$\left[\begin{array}{ll}\frac{2}{3}& -\frac{1}{3}\\ -\frac{1}{3}& \frac{2}{3}\end{array}\right]$$

• Encontre os autovalores $\left[\begin{array}{ll}2& 1\\ 1& 2\end{array}\right]$

  

  $${\lambda }_1=1,{\lambda }_2=3$$

• Encontre a forma escalonada de linhas $\left[\begin{array}{ll}2& 1\\ 1& 2\end{array}\right]$

  

  $$\left[\begin{array}{ll}2& 1\\ 0& \frac{3}{2}\end{array}\right]$$

• Encontre a forma escalonada de linha reduzida $\left[\begin{array}{ll}2& 1\\ 1& 2\end{array}\right]$

  

  $$\left[\begin{array}{ll}1& 0\\ 0& 1\end{array}\right]$$