If the system of equations ax+hy+g=0,hx+by+f=0 and gx+fy+c=kis consist – InterviewSolution

1.	If the system of equations ax+hy+g=0,hx+by+f=0 and gx+fy+c=kis consistent and k=1λ∣∣∣∣ahghbfgfc∣∣∣∣, then λ is equal to
Answer» If the system of equations $a x + h y + g = 0, h x + b y + f = 0$ and $g x + f y + c = k$ is consistent and $k = \frac{1}{λ} ∣ ∣∣ ∣ \begin{matrix} a & h & g h & b & f g & f & c \end{matrix} ∣ ∣∣ ∣$ , then $λ$ is equal to

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