FSc Math Book1, CH 12, LEC 14: The Cosine and Tangent of Half Angle in Term of Sides

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This video lecture from Applications of Trigonometry (F.Sc.first year Mathematics) covers: detailed discussion on concept and proof of cosine and tangents of half angle in terms of sides of oblique triangle.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.