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Q.
Given the system of straight lines a $(2x + y - 3) + b(3x + 2y - 5) = 0$, the line of the system situated farthest from the point $(4, -3)$ has the equation
The given system of lines passes through the point of intersection of the straight lines $2 x+y-3=0$ and $3 x+2 y-5=0$ $\left[ L _{1}+\lambda L _{2}=0\right.$ form $]$ which is $(1,1)$.
The required line will also pass through this point.
Further, the line will be farthest from point $(4,-3)$
if it is in direction perpendicular to line joining $(1,1)$ and $(4,-3)$.
$\therefore $ The equation of the required line is
$y-1=\frac{-1}{\frac{-3-4}{4-1}}(x-1)$
$\Rightarrow 3 x-4 y+1=0$