A) 12
B) 24
C) -12
D) -24
Correct Answer: B
Solution :
Put x = 1 both side\[\Rightarrow \]\[\left| \begin{matrix} 2 & 2 & -1 \\ 4 & 3 & 0 \\ 6 & 1 & 1 \\ \end{matrix} \right|=a-12\] \[\Rightarrow \]\[a=24\]You need to login to perform this action.
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