Edited by kingyo, 12-06-2012 - 20:42.
C/m: $\frac{cos\frac{A-B}{2}}{sin\frac{C}{2}}+\frac{cos\frac{B-C}{2}}{sin\frac{A}{2}}...$
Started By kingyo, 12-06-2012 - 20:37
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kingyo
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Posted 12-06-2012 - 20:37
C/m: $\frac{cos\frac{A-B}{2}}{sin\frac{C}{2}}+\frac{cos\frac{B-C}{2}}{sin\frac{A}{2}}+\frac{cos\frac{C-A}{2}}{sin\frac{B}{2}}\geq 6$
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