Mathematics in Ancient and Medieval India c6.s9.46
Mathematics in Ancient and Medieval India c6.s9.46
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c6.s9.46
Again, BC² = CD² + BD² = CD² + (AB - AD)² = (CD² + AD²) + AB²
- 2AB.AD = AC² + AB² - 2AB.AD or a² = b² + c² - 2c.R Cos A = b² + c² - 2c.b. Cos A ......(2) = b² + c² - 2bc. (R Cos A)/R .