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Math Forum » Discussions » sci.math.* » sci.math.independent

Topic: math paradox
Replies: 7   Last Post: Jul 14, 2003 2:47 AM

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david Haines

Posts: 8
Registered: 12/12/04
Re: math paradox
Posted: Jan 6, 1998 10:25 AM
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azzam@cyberia.net.lb wrote:
>
> What's wrong in the expression
> -1=(-1)^3=(-1)^(6/2)=sqrt((-1)^6)=sqrt(1)=1
>
> -------------------==== Posted via Deja News ====-----------------------
> http://www.dejanews.com/ Search, Read, Post to Usenet

Jeez - sqrt(1)=1 OR -1
whichever one makes sense in the equation. +1 is obviously wrong in this
equation which means you made the wrong choice.

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