document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1105023>Question 1105023</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If cot(x/2)=a, what is sin(x) ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #719778 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=719778\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  If cot(x/2)=a, what is sin(x) ? <BR>\n" );
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document.write( "cot(x/2) = sqrt[(1+cos(x))/(1-cos(x)]<BR>\n" );
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document.write( "a^2 = (1+cos(x))/(1-cos(x))<BR>\n" );
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document.write( "a^2 = [(1+cos(x)(1-cos(x))/(1-cos(x))^2]<BR>\n" );
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document.write( "a^2 = sin^2(x)/(1-cos(x))^2<BR>\n" );
document.write( "a = sin(x)/(1-cos(x))<BR>\n" );
document.write( "sin(x) = a/(1-cos(x))<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( " </SPAN>\n" );
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