The value of \[\left| \,\begin{matrix} a & a+b & a+2b \\ a+2b & a & a+b \\ a+b & a+2b & a \\ \end{matrix}\, \right|\]is equal to [Kerala (Engg.) 2001]

The value of \[\left| \,\begin{matrix} a & a+b & a+2b \\ a

1.	The value of \[\left\| \,\begin{matrix} a & a+b & a+2b \\ a+2b & a & a+b \\ a+b & a+2b & a \\ \end{matrix}\, \right\|\]is equal to [Kerala (Engg.) 2001]
A.	\[9{{a}^{2}}(a+b)\]
B.	\[9{{b}^{2}}(a+b)\]
C.	\[{{a}^{2}}(a+b)\]
D.	\[{{b}^{2}}(a+b)\]
Answer» C. \[{{a}^{2}}(a+b)\]

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The value of \[\left| \,\begin{matrix} a & a+b & a+2b \\ a+2b & a & a+b \\ a+b & a+2b & a \\ \end{matrix}\, \right|\]is equal to [Kerala (Engg.) 2001]

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