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FSc Math Book2, Ex 7.4, LEC 19: Q 8-9

http://www.dailymotion.com/video/x14ra0w_fsc-math-book2-ex-7-4-lec-19-q-8-9_tv

This video lecture from Vectors (F.Sc.second year Mathematics) covers: Question 8-9 of exercise 7.4. In these questions we prove the identity sin(α-β) = sin(α).cos(β) – cos(α).sin(β) using vector analysis approach. 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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