Question

Calcule as matrizes a seguir !!!!

Glr por favor,Me ajudem!!​

Answer 1

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$\tt{a)}~\rm{A}=\begin{bmatrix}\sf{4}\end{bmatrix}\\\sf{det~A=4}$

$\tt{b)}~\rm{B}=\begin{bmatrix}\sf{-6}\end{bmatrix}\\\sf{det~B=-6}$

$\tt{c)}~\rm{C}=\begin{bmatrix}\sf{5}&\sf{2}\\\sf{3}&\sf{4}\end{bmatrix}\\\sf{det~C=5\cdot4-3\cdot2=20-6=14}$

$\tt{d)}~\rm{D}=\begin{bmatrix}\sf{2}&\sf{-2}\\\sf{4}&\sf{-3}\end{bmatrix}\\\sf{det~D=2\cdot(-3)-4\cdot(-2)=-6+8=2}$

$\tt{e)}~\rm{E}=\begin{bmatrix}\sf{0}&\sf{3}&\sf{0}\\\sf{-2}&\sf{3}&\sf{1}\\\sf{4}&\sf{-2}&\sf{5}\end{bmatrix}\\\sf{det~E=-3\cdot(-10-4)=42}$