document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=914690>Question 914690</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me with this question:\r<BR>\n" );
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document.write( "Given sin&#920;= -3/5, find cos 2&#920;\r<BR>\n" );
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document.write( "thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #555251 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=555251\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given sin&#920;= -3/5, find cos 2&#920; <BR>\n" );
document.write( "cos 2&#920;=1-2sin^2&#920;=1-2(-3/5)^2=1-2(9/25)=1-(18/25)=7/25<BR>\n" );
document.write( "cos 2&#920;=7/25 </SPAN>\n" );
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