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A circle passes through the points of intersection of the lines $λ x - y = 1$ and $x - 2 y + 3 = 0$ with the
coordinate axes. Then $λ$ is

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Detailed Solution

The slopes are $λ$ and $\frac{1}{2}$ .

For concyclic points $m_{1} m_{2} = 1 . ∴ λ = 2$

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