document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=111921>Question 111921</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find sin(tan^-1(2/3) and find given that sin a=-8/17, and a is in QIV, find sin(a/2) and cos(a/2), thanks I need help in this area a=angle. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #81667 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=81667\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> tan^-1(2/3=33.69...<BR>\n" );
document.write( "sin(33.69)=.5547...<BR>\n" );
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document.write( "sin^-1(-8/17)=-28.07...<BR>\n" );
document.write( "sin(-28.07.../2)=-.242536...<BR>\n" );
document.write( "cos(-28.07.../2=.970143...<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
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