[an error occurred while processing this directive]

<center>
<h1>
Sine and Cosine
</h1>
</center>

<center> <img src="s1img625.gif"> </center> <p>


Let <i>theta</i> be an angle measured counterclockwise from the x-axis
along the arc of the unit Circle. Then <i>sine(theta)</i> is the
vertical coordinate of the arc endpoint and <i>cosine(theta)</i> is
the horizontal coordinate.



[an error occurred while processing this directive]