Question:
Mark the tick against the correct answer in the following:
$\left|\begin{array}{lll}a-b & b-c & c-a \\ b-c & c-a & a-b \\ c-a & a-b & b-c\end{array}\right|=?$
A. $(a+b+c)$
B. $3(a+b+c)$
C. $3 a b c$
D. 0
Solution:
If every element of a row is 0 then the value of the determinant will be 0