Calculate $| \mathbf { A } |$ - $$\begin{aligned}9 x - 9 y - z & = - 30 \\x - 5 y - 6 z & = - 41 \\- 8 x + y + z & = - 8\end{aligned}$$

question 58

Multiple Choice

Calculate $| \mathbf { A } |$
- $$\begin{aligned}9 x - 9 y - z & = - 30 \\x - 5 y - 6 z & = - 41 \\- 8 x + y + z & = - 8\end{aligned}$$

• A) \(( 3,3,3 )\)
• B) \(( 2 , - 5 , - 3 )\)
• C) \(( 2,5,3 )\)
• D) \(( 5,3,5 )\)

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