On 14 Jan, 21:02, Paul Sperry <plspe...@[EMAIL PROTECTED]
> wrote:
> In article
> <37a7622e-27ed-4805-af73-acf1fe5eb...@[EMAIL PROTECTED]
>,
>
> Dougsd1r <dougs...@[EMAIL PROTECTED]
> wrote:
> > ok thanks for that, yeah that was a typo in my 1st example.
> > So what happens though if you have a combination of positives and
> > negatives in a column in the table
> > ie. =A02 positives and a negative or 2 negatives and a positive? do
you
> > then have to just work it out for f'(x)
>
> > ie when x=3D2 then
>
> > 15x^2 =3D 60 (positive)
> > 1 + x =3D 3 (postive)
> > 1 - x =3D -1 (negative)
>
> "(+)*(+)*(-) =3D (-)"
>
> > f' ' (2) when calculated is negative
>
> --
> Paul Sperry
> Columbia, SC (USA)
ahah! sorry didnt see that in your first post! thanks for that
|
