Trig Values of 150 degrees

<BODY LANG="EN" > <HR><center> <table border=1> <td><A HREF="node31.html"><img height=36 width=36 alt="PREVIOUS" src="/UCESIcons/tools/previous.gif"></A></td> <td><A HREF="node31.html"><img height=36 width=36 alt="UP" src="/UCESIcons/tools/up.gif"></A></td> <td><A HREF="node33.html"><img height=36 width=36 alt="NEXT" src="/UCESIcons/tools/next.gif"></A></td> <td><a href="contents-node32.html"><img height=36 width=36 alt="CONTENTS" src="/UCESIcons/tools/toc.gif"></a></td> </table> </center> <HR> <H3>Trig Values of 150°</H3> <P> Let <IMG WIDTH=58 HEIGHT=12 ALIGN=BOTTOM ALT="theta=150 degrees" SRC="img73.gif">. From the diagram below, we see that the reference angle here is <IMG WIDTH=57 HEIGHT=12 ALIGN=BOTTOM ALT="theta* = 30 degrees" SRC="img69.gif">. Hence, we are working with a <nobr>30°- 60°- 90°</nobr> triangle positioned in Quadrant II in the following way: <P> <CENTER> <IMG SRC="p8-5.gif" ALT="[diagram]" WIDTH=213 HEIGHT=142> </CENTER> <P> From this we can see the following: <P> <CENTER> <IMG WIDTH=249 HEIGHT=136 ALIGN=BOTTOM ALT="[trig values for 150 degrees]" SRC="img74.gif"> </CENTER> <P> <HR><center> <table border=1> <td><A HREF="node31.html"><img height=36 width=36 alt="PREVIOUS" src="/UCESIcons/tools/previous.gif"></A></td> <td><A HREF="node31.html"><img height=36 width=36 alt="UP" src="/UCESIcons/tools/up.gif"></A></td> <td><A HREF="node33.html"><img height=36 width=36 alt="NEXT" src="/UCESIcons/tools/next.gif"></A></td> <td><a href="contents-node32.html"><img height=36 width=36 alt="CONTENTS" src="/UCESIcons/tools/toc.gif"></a></td> </table> </center> <HR><P><ADDRESS> <I><A HREF="http://www.math.psu.edu/sellersj/">James A. Sellers</A> </I> </ADDRESS> </BODY>