Question

Suppose $A=\begin{bmatrix} a_1 & b_1 & c_1 \\\ a_2 & b_2 & c_2 \\\ a_3 & b_3 & c_3\end{bmatrix}$ is an adjoint of the matrix $\begin{bmatrix} 1 & 3 & 3 \\\ 1 & 4 & 3 \\\ 1 & 3 & 4\end{bmatrix}$. Then the value of $\frac{a_!+b_2+c_3}{b_1a_2}$ is

• A. 0
• B. 3
• C. 1
• D. 2
• E. 4

Answer 1

Answer: (B)

3

Answer 2

The correct option is (B): 3