Explicação passo-a-passo:
[tex]\blue {{ _{\heartsuit} } \heartsuit_{\heartsuit} } \: \: \mathsf {OI, TUDO \: \: J\acute{O}IA \: ? \: \:\blue {{ _{\heartsuit} } \heartsuit_{\heartsuit} } }[/tex]
[tex]\left[\begin{array}{ccc} \sf{ a_{11}}& \sf{ a_{12} }&\sf{ a_{13} }&\sf{ a_{14} }\\\sf{ a_{21} }&\sf{ a_{22} }&\sf{ a_{23} }&\sf{ a_{24} }\\\sf{ a_{31} }&\sf{ a_{32} }&\sf{ a_{33} }&\sf{ a_{34} }\end{array}\right] [/tex]
a)
[tex]\sf{ a_{34} = \boxed{\red{ \sf{ - 1}}}}[/tex]
b)
[tex]\sf{ a_{22} = \boxed{\red{ \sf{10}}}}[/tex]
c)
[tex]\sf{ a_{13} = \boxed{\red{ \sf{0}}} }[/tex]
d)
[tex]\sf{ a_{31} + \sf{ a_{24} }\rightarrow1 + 7 = \boxed{\red{ \sf{8}}}}[/tex]
[tex]\mathcal{ATT : ARMANDO} \\ \mathfrak{\small04\diagup01\diagup2021} \\ \mathfrak{\small{10} :{38} \: \: pm}[/tex]
