The determinant \[\left| \begin{matrix} a+b+c & a+b & a \\ 4a+3b+2c & 3a+2b & 2a \\ 10a+6b+3c & 6a+3b & 3a \\ \end{matrix} \right|\] is independent of which one of the following?

The determinant \[\left| \begin{matrix} a+b+c & a+b & a \\

1.	The determinant \[\left\| \begin{matrix} a+b+c & a+b & a \\ 4a+3b+2c & 3a+2b & 2a \\ 10a+6b+3c & 6a+3b & 3a \\ \end{matrix} \right\|\] is independent of which one of the following?
A.	a and b
B.	b and c
C.	a and c
D.	All of these
Answer» C. a and c

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The determinant \[\left| \begin{matrix} a+b+c & a+b & a \\ 4a+3b+2c & 3a+2b & 2a \\ 10a+6b+3c & 6a+3b & 3a \\ \end{matrix} \right|\] is independent of which one of the following?

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