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More implicit differentiation http://www.khanacademy.org/video/more-implicit-differentiation ----------------------------------------------------- يتناول هذا الفيدو مزيداً من مسائل الاشتقاق الضمني ----------------------------------------------------- شكر خاص لمؤسسة شركاء في التنمية المستدامة -- فلسطين http://psdpal.org