Let A = [aij] be a 3 × 3 matrix such that |A| = 5. If Cij = Cofactor of aij in A. Then a11 C11 + a12 C12 + a13 C13 = ________.

Let A = [aij] be a 3 × 3 matrix such that |A| = 5. If Cij = Cofactor

1.	Let A = [aij] be a 3 × 3 matrix such that \|A\| = 5. If Cij = Cofactor of aij in A. Then a11 C11 + a12 C12 + a13 C13 = ________.
Answer» Let A = [a_ij] be a 3 × 3 matrix such that \|A\| = 5. If C_ij = Cofactor of a_ij in A. Then a₁₁ C₁₁ + a₁₂ C₁₂ + a₁₃ C₁₃ = ________.