Question:
Mark the tick against the correct answer in the following:
$\left|\begin{array}{ccc}a & a+2 b & a+2 b+3 c \\ 3 a & 4 a+6 b & 5 a+7 b+9 c \\ 6 a & 9 a+12 b & 11 a+15 b+18 c\end{array}\right|=?$
A. $a^{3}$
B. $-a^{3}$
C. 0
D. none of these
Solution:
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