ABCD is a quadrilateral inscribed in circle with center O. Let BD bisect OC perpendicularly.P is a point on the diagonal AC such that PC=OC. BP cuts AD at E and the circle at F. Prove that PF is the geometric mean of EF and BF.

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TopNewestISNT THIS QUESTION FROM BHASKARA CONTEST FINAL – Nitish Deshpande · 1 year, 9 months ago

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