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Forum: Science, Math, and Philosophy 11-22-2007, 10:00 PM
Replies: 18
Views: 355
Posted By blah_blah
Re: Two Olympiad Problems

straightforward solution to 2)

write

K = \sqrt{s(s-a)(s-b)(s-c)}

by heron formula,

substitute a=x+y,b=x+z,c=y+z for positive x,y,z (always possible in triangle). heron's formula becomes...
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