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FSc Math Book1, Ch 10, LEC 20: Double angle identities

YouTube Link

https://youtu.be/4yDYiZUA3wk

DailyMotion Link

http://www.dailymotion.com/video/x23ical_fsc-math-book1-ch-10-lec-20-double-angle-identities_tv

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.

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