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Exponential Decay Formula Proof (can skip, involves Calculus) http://www.khanacademy.org/video/exponential-decay-formula-proof--can-skip--involves-calculus -------------------------------------------------- يتناول هذا الفيدو اثباتاً لصيغة التحلل الأسي من خلال التفاضل والتكامل -------------------------------------------------- شكر خاص لمؤسسة شركاء في التنمية المستدامة -- فلسطين http://psdpal.org