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FSc Math Book2, Ex 7.3, LEC 15: Q 12

http://www.dailymotion.com/video/x14r9je_fsc-math-book2-ex-7-3-lec-15-q-12_tv

This video lecture from Vectors (F.Sc.second year Mathematics) covers: Question 12 of exercise 7.3. In this question we prove that in any triangle b = cosA + a.cosC. 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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