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Triangle problem

Let triangle ABC be acute and let H be its orthocenter. The altitudes AA_1 \: BB_1 \: CC_1 . Prove that \frac{AH}{AA_1} + \frac{BH}{BB_1} + \frac{CH}{CC_1} = 2
It is easy question. Use areas to solve it.

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Categories: Triangles Tags: , , ,
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  1. October 8, 2011 at 14:16

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