Question
Question: If D = \(\left| \begin{matrix} a_{1} & a_{2} & a_{3} \\ b_{1} & b_{2} & b_{3} \\ c_{1} & c_{2} & c_{...
If D = a1b1c1a2b2c2a3b3c3 then value of b1B1 + b2B 2 + b3B 3 is where B1, B2, B3 are co-factor of a1, a2, a3 respectively-
A
D
B
D2
C
0
D
None of these
Answer
0
Explanation
Solution
b1B1 + b2B2 + b3B3 = 0