Let B be the centre of the circle $x^2+y^2-2x+4y+1=0$. Let the tangent at Two points P and Q on the circle intersect at the point $A(3,1)$ Then $8\left(\frac{Areaof\Delta APQ}{Areaof\Delta BPQ}\right)=\lambda$ then $\frac{\lambda }{9}$ is