Date: Tue, 12 Nov 1996 21:02:35 +0100

From: Ania Majkowska

Hi !

I have a problem. Is it possible to prove this statement?

sin(A)*sin(B)/sin(C/2)*sin(C/2)+

sin(A)*sin(C)/sin(B/2)*sin(B/2)+

sin(B)*sin(C)/sin(A/2)*sin(A/2)>=9

if A,B,C are the angles of a triangle.

Anna

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