Let A and B are two matrices of same order 3×3 given by A=⎡⎢⎣13 – InterviewSolution

1.	Let A and B are two matrices of same order 3×3 given by A=⎡⎢⎣13λ+2246358⎤⎥⎦ and B=⎡⎢⎣324325214⎤⎥⎦.If Tr(AB)T+Tr(BA)T=Tr(BA), then the value of 2λ equals to
Answer» Let $A$ and $B$ are two matrices of same order $3 \times 3$ given by $A = ⎡ ⎢ ⎣ \begin{matrix} 1 & 3 & λ + 2 2 & 4 & 6 3 & 5 & 8 \end{matrix} ⎤ ⎥ ⎦$ and $B = ⎡ ⎢ ⎣ \begin{matrix} 3 & 2 & 4 3 & 2 & 5 2 & 1 & 4 \end{matrix} ⎤ ⎥ ⎦ .$ If $T r (A B)^{T} + T r (B A)^{T} = T r (B A),$ then the value of $2 λ$ equals to

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