document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=610543>Question 610543</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do you prove that 1-cos2x=2sin^2x? I don't even know how to start this problem. Please help =) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #384459 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=384459\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  prove that 1-cos2x=2sin^2x<BR>\n" );
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document.write( "1 - cos(2x) = 2sin^2(x)<BR>\n" );
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document.write( "1 - (cos^2(x) - sin^2(x)) = 2sin^2(x)<BR>\n" );
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document.write( "1-cos^2(x) + sin^2(x) = 2sin^2(x)<BR>\n" );
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document.write( "sin^2(x) + sin^2(x) = 2sin^2(x)<BR>\n" );
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document.write( "2sin^2(x) = 2sin^2(x)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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