Question 5
If ∆ = 11 12 13 21 22 23 31 32 33
| a | a | a |
|---|---|---|
| a | a | a |
| a | a | a |
and Aij is Cofactors of aij, then value of ∆ is given by (A) a11 A31+ a 12 A32 + a13 A33 (B) a11 A11+ a 12 A21 + a13 A31 (C) a21 A11+ a22 A12 + a23 A13 (D) a11 A1 1+ a 21 A21 + a31 A31
SOLUTION
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