1. May 5, 2009 #1

   Edwinkumar

   

   Is it true that [tex]f(x)=x^a[/tex] is always a strictly convex function for [tex]a>1[/tex] on [tex](0,\infty)[/tex]?

    

   Edwinkumar, May 5, 2009
2. 
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3. May 5, 2009 #2

   snipez90

   

   Find the sign of f''(x).

    

   snipez90, May 5, 2009

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