In the figure, triangle ABC is an obtuse triangle in which angle C > 90°. AD perpendicular to BC produced and BE perpendicular to AC produced. Prove that AB² = BC × BD + AC × AE
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In the figure, triangle ABC is an obtuse triangle in which angle C > 90°. AD perpendicular to BC produced and BE perpendicular to AC produced. Prove that AB² = BC × BD + AC × AE
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