document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=962815>Question 962815</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the equation, [0, 2pi)<BR>\n" );
document.write( "a) cos(pi/2+x)-cos(pi/2-x)=&#8730;2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #588238 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=588238\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve the equation, [0, 2pi)<BR>\n" );
document.write( "a) cos(pi/2+x)-cos(pi/2-x)=&#8730;2<BR>\n" );
document.write( "(cos(&#960;/2)*cosx-sin(&#960;/2)*sinx-[(cos(&#960;/2)*cosx+sin(&#960;/2)*sinx]=&#8730;2<BR>\n" );
document.write( "0*cosx-1*sinx-0*cosx-1*sinx=&#8730;2<BR>\n" );
document.write( "-2sinx=&#8730;2<BR>\n" );
document.write( "sinx=-&#8730;2/2<BR>\n" );
document.write( "x=3&#960;/4, 5&#960;/4 </SPAN>\n" );
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