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Topic: Derive tan(A/2) = sqrt[(s-b)(s-c)/{s(s-a)}]
Replies: 2   Last Post: Dec 18, 2009 7:48 AM

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Posts: 2
Registered: 11/23/09
Derive tan(A/2) = sqrt[(s-b)(s-c)/{s(s-a)}]
Posted: Nov 23, 2009 12:12 PM
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How does one derive
tan(A/2) = sqrt[(s-b)(s-c)/{s(s-a)}]?


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