Let A= ((2,-1),(0,2)). If B= I- ""^(5)C(...

Let `A= ((2,-1),(0,2))`. If `B= I- ""^(5)C_(1) ("adj" A) + ""^(5)C_(2) ("adj " A)^(2)- ....- ""^(5)C_(5) ("adj" A)^(5)`, then the modulus of sum of all elements of the matrix B is

`-5`

`-6`

`7`

`-8`

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