document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=773393>Question 773393</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the exact values of sin(u/2),cos(u/2),tan(u/2)using the half-angle formulas.<BR>\n" );
document.write( "cos u = 3/5, 0<u<pi/2 </SPAN>\n" );
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document.write( "cos u = 3/5, 0<u<pi/2<BR>\n" );
document.write( "***<BR>\n" );
document.write( "You are working with a 3-4-5 reference right triangle in quadrant I<BR>\n" );
document.write( "sin u=4/5<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28u%2F2%29=sqrt%28%281-cos%28u%29%29%2F2%29=sqrt%28%281-%283%2F5%29%29%2F2%29=sqrt%28%282%2F5%29%2F2%29=sqrt%281%2F5%29=sqrt%285%29%2F5 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%28u%2F2%29=sqrt%28%281%2Bcos%28u%29%29%2F2%29=sqrt%28%281%2B%283%2F5%29%29%2F2%29=sqrt%28%288%2F5%29%2F2%29=sqrt%284%2F5%29=2sqrt%285%29%2F5 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%28u%2F2%29=sin%28u%29%2F%281%2Bcos%28u%29%29=%284%2F5%29%2F%281%2B%283%2F5%29%29=%284%2F5%29%2F%288%2F5%29=1%2F2%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );