Mathematics in Ancient and Medieval India c6.s9.45
Mathematics in Ancient and Medieval India c6.s9.45
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c6.s9.45
From Fig. 12, △ ABC = ½. AB.CD = ½. c. R Sin A = ½ c.b Sin A = ½bc. (R SinA)/R [ Vide chapter on Trigonometry. ] = ½.a.R Sin C = ½ab Sin C = ½ (ab R SinC)/R .........(1)