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=∣∣
∣
∣
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:






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