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JEE MAIN 2023
02-04-2023-S2
Question
Points $\mathrm{P}(-3,2), \mathrm{Q}(9,10)$ and $\mathrm{R}(\alpha, 4)$ lie on a circle C with PR as its diameter. The tangents to C at the points $Q$ and $R$ intersect at the point $S$. If $S$ lies on the line $2 x-k y=1$, then $k$ is equal to $\_\_\_\_$ .
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