FSc Math Book1, Ch 9, LEC 7; Fundamental Identities

This video lecture from Fundamentals of Trigonometry (F.Sc. first year Mathematics) covers: detailed discussion on some useful fundamental identities of trigonometry and their proof. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab