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If P_(1),P_(2),P_(3) are altitudes of DeltaABC from the vertices A,B,C and Delta is the area of triangle then,1/P_(1)^(2)+1/P_(2)^(2)+1/P_(3)^(2) = |
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Answer» `a^(2)+B^(2)+C^(2)/4Delta^(2)` |
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