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Consider the circle x^2+y^2 -8x-18y +93...

Consider the circle `x^2+y^2 -8x-18y +93=0` with the center C and a point `P(2,5)` out side it. From P a pair of tangents PQ and PR are drawn to the circle with S as mid point of QR. The line joining P to C intersects the given circle at A and B. Which of the following hold (s)

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