In the ambiguous case if b (side ) and A (angle) are given and c1 and c2 are two possible values for the third side , prove that (c1-c2)^2 + ((c1+c2)^2)(tanA)^2 = 4a^2
Last edited by mr fantastic; Dec 3rd 2011 at 09:55 PM. Reason: Title.
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