Sat April 23, 2011 By: Gunjan Singh


Expert Reply
Tue April 26, 2011
Law of tangents
Let a triangle have sides of length , , and and let the angles opposite these sides be denoted by A ,B   and C. The law of tangents states that
(a-b)/(a+b)= tan (1/2(A-B)/1/2(A+B))


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