[blindkid] Pre Cal Help - Unit Cirlce

[Marshall Flax]

It's slightly more than that.  On that circle, every point can be
thought of as being a certain number of degrees counterclockwise
starting at the point (1,0). Call that angle "theta". Then the (x,y)
coordinates of that point are (cosine theta, sin theta).

In other words, cosine is just a machine whose input is your angle and
whose output is your x coordinate on the unit circle, and sin is just
a machine whose input is your angle and whose output is your y
coordinate on the unit circle. And x and y are the two legs of a right
triangle with a hypotenuse of 1.

I think that's it!

Marshall

On Wed, Sep 30, 2009 at 9:18 PM, Mike Freeman <k7uij at panix.com> wrote:
> I should imagine that the "unit circle" is simply a circle whose
> equation is specified as: "X squared Plus Y squared equals 1".
>
> Mike Freeman
>
> ----- Original Message -----
> From: "Kim Cunningham" <kim at gulfimagesphoto.com>
> To: "Blindkid" <blindkid at nfbnet.org>
> Sent: Wednesday, September 30, 2009 4:15 AM
> Subject: [blindkid] Pre Cal Help - Unit Cirlce
>
>
> I am forwarding the below message for my daughter. She has already
> posted the question on the TABS and NABS list servs. Any help would be
> appreciated. You can email her directly if you like - Kayleigh Joiner
> kayleigh281 at yahoo.com
> Thank you,
> Kim Cunningham
>
>
> Hello listers,
> This is Kayleigh from Texas. I am currently taking pre-calculus and we
> have started covering the unit circle. I am not aware of anything that
> is available for the blind concerning this topic. If anyone has any
> suggesstions they would be greatly appreciated.
> Sincerely,
> Kayleigh
>
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