Re: TIB: Bad Graph...
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Re: TIB: Bad Graph...
type out
(sin x)^2 -2sin x - 2
btw: there are an infinite number of answers for the problem.
the only way you could have gotten -.79 is if you squared x and not
the sin of x.
i mean, you probably typed sin x^2 which the calc evaluated at sin
(x^2). according to what you said below, you wanted (sin x)^2.
how did you get the -.82?
---Brice-Olivier Demory <brice.demory@span.ch> wrote:
>
>
> Hi all !
>
>
> I have: f(x) = sin^2 (x) - 2.sin x - 2
>
> How to enter it in my TI-85 ?
>
> When f(x) = 0, x must be around -.82 (i'm sure, I've calculated it)
> and the TI finds -.78... What's wrong ?
>
> Thanks
>
> Brice-Oliver
>
==
The Garth Johnson
Visit my website! http://www.bigfoot.com/~garthjohnson
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