If $a,b,c$ are sides of a triangle whose perimeter is less than 2, prove that:
$\displaystyle \frac{(1+a)(1+b)(1+c)}{(1-a)(1-b)(1-c)} < \frac{(2+a+b+c)^2}{(2-(a+b+c))^2}$
Showing posts with label ravi's substitution. Show all posts
Showing posts with label ravi's substitution. Show all posts
Thursday, September 24, 2009
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