27p3 - 1/216 - (q/2)p2 + (1/4)p
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here is your answer piya ji
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∵ diagonals of a ║gm bisect each other
⇒ OA = OCOA=OC
⭢ OD = OBOD=OB
⭢∵OA = OC and AE = CF (Given)OA=OCandAE=CF(Given)
⭢ OA-AE = OC-CFOA−AE=OC−CF
⭢OE = OFOE=OF
∵BFDEBFDE is a quadrilateral whose diagonals bisect each other
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