12 Mathematics by Maktab
Ch 10 LEC 20 Double angle identities
This video lecture from Trigonometric Identities (F.Sc. first year Mathematics) covers: detailed discussion on concept and proof of double angle identities. 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.