>Is the product of a^x and 1/a^x equal to unit or 1 both in physics and
>in mathematics? How do (a^x)*1/a^x, x*1/x and XY differ from one
>another (if XY=1)?
look what will happen if x >> infinite.
we get: infin. divided by zero.
w.
John Christiansen
"Helmut Wabnig" <hwXa...@aXon.at> skrev i en meddelelse
news:3dgkrugfkpgbbanf2...@4ax.com...
No, not always! If there is anything of interest here, it is the fact
that x/x is not always 1. Of course, if x is a _nonzero_ real or complex
number, then x/x is indeed 1. But if x = 0, then x/x is normally considered
to be undefined in mathematics. [FWIW, outside of mathematics, we find that
0/0 is NaN in standard floating-point arithmetic, 0 in J, and 1 in APL.]
David Cantrell
> "Helmut Wabnig" <hwXa...@aXon.at> skrev i en meddelelse
> news:3dgkrugfkpgbbanf2...@4ax.com...
> > On 25 Oct 2002 09:32:48 -0700, vgop...@rediffmail.com (V.Gopal)
> > wrote:
> >
> > >Is the product of a^x and 1/a^x equal to unit or 1 both in physics and
> > >in mathematics? How do (a^x)*1/a^x, x*1/x and XY differ from one
> > >another (if XY=1)?
> >
> > look what will happen if x >> infinite.
> > we get: infin. divided by zero.
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0/0 = 1?