Given A=[94−34−15]\displaystyle {A}={\left[\begin{array}{cc} {9}&{4}\\-{34}&-{15}\end{array}\right]}A=[9−344−15] and B=[−154349]\displaystyle {B}={\left[\begin{array}{cc} -{15}&{4}\\{34}&{9}\end{array}\right]}B=[−153449] , use matrix multiplication to determine whether A\displaystyle {A}A and B\displaystyle {B}B are inverses.
AB=\displaystyle {A}{B}=AB=
BA=\displaystyle {B}{A}=BA=
Are A\displaystyle {A}A and B\displaystyle {B}B inverses?
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