perplexus.info :: Calculus : Inverted powers

Inverted powers (Posted on 2004-08-10)

Prove that for all positive x and y, x^y+y^x>1.

See The Solution Submitted by Federico Kereki

Rating: 4.0000 (1 votes)

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Soln using derivatives of x^x

Comment 2 of 2 |

I have removed my original comment because its argument had a major flaw which I cannot yet fix.

Edited on August 11, 2004, 11:35 pm

Posted by Richard on 2004-08-10 18:33:07

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