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Is It Necessary and Sufficient (Posted on 2008-02-27) Difficulty: 2 of 5
Let a,b,c be real numbers. Is a,b,c≥0 the necessary and sufficient condition to show that a3+b3+c3≥3abc? If not, find the condition that is both sufficient and necessary.

See The Solution Submitted by Praneeth    
Rating: 3.5000 (2 votes)

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  Subject Author Date
re: Puzzle Solution -- minor correctionK Sengupta2008-02-28 05:05:19
SolutionPuzzle Solution -- minor correctionSteve Herman2008-02-28 01:29:45
SolutionPuzzle SolutionK Sengupta2008-02-27 23:57:58
Hints/TipsMore thoughts; Solution?Steve Herman2008-02-27 23:45:35
Hints/TipsStating the obvious ...Steve Herman2008-02-27 11:34:08
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