Re: Can I have fries and a calculator with that?

In article <1134166431.198956.259000@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
"Dave L. Renfro" <renfr1dl@xxxxxxxxx> wrote:

> I came across the following while searching for
> something else. It speaks for itself.
>
> ----------------------------
>
> http://www.vbforums.com/showthread.php?referrerid=43870&t=298609
>
> How do i rationalize the denominator in this?
> 6/sqr(x) + sqr(3) I know for somthing like
> 7/sqr(4) i can use a rationalizing factor of
> sqr(4) to end up getting 7sqr(4)/4 but then
> im not sure if this ends up being reduced to
> 7sqr(1). So i guess im asking two quesitons.
> Thanks.
>
> ----------------------------
>
> I'm almost tempted to think this was a troll post
> given the "two quesitons" at the end, but I think
> doing so requires too much textual interpretation
> to be realistic.
>
> Dave L. Renfro

If that denominator is (sqrt(x) + sqrt(3)), you can rationalize it by
multiplying the numerator and denominator by (sqrt(x) - sqrt(3)) or by
(-sqrt(x) + sqrt(3)).

To rationalize a denomonator of sqrt(4), note that sqrt(4) = 2, which is
already rational.
.

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