1.

Let A+2B=∣∣∣∣1206−33−531∣∣∣∣ and 2A−B=∣∣∣∣2−152−16012∣∣∣∣. It Tr(A) denotes the sum of all diagonal elements of the matrix A, then Tr(A)–Tr(B) has value equal to:

Answer»

Let A+2B=
120633531
and 2AB=
215216012
.
It Tr(A) denotes the sum of all diagonal elements of the matrix A, then Tr(A)Tr(B) has value equal to:






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