document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=849135>Question 849135</A>: <I><SPAN STYLE=\"word-break: break-all;\"> &#952;=157.5° Use a half-angle identity to find the exact value of sin(&#952;). </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #511453 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=511453\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  &#952;=157.5° Use a half-angle identity to find the exact value of sin(&#952;).<BR>\n" );
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document.write( "sin(157.5) = sin(315/2) = sqrt[(1-cos(315)/2] = sqrt[(1-(sqrt(2)/2))/2]<BR>\n" );
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document.write( "= sqrt[(2-sqrt(2))/4]<BR>\n" );
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document.write( "= sqrt[2-sqrt(2)]/2<BR>\n" );
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document.write( "Chers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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