document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=410612>Question 410612</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how to verify the identity of problem<BR>\n" );
document.write( "sin^3(x)+cos^3(x)=(sin(x)+cos(x))(1-sin(x)cos(x)) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #288889 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=288889\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> how to verify the identity of problem<BR>\n" );
document.write( "sin^3(x)+cos^3(x)=(sin(x)+cos(x))(1-sin(x)cos(x))\r<BR>\n" );
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document.write( "..\r<BR>\n" );
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document.write( "sin^3(x)+cos^3(x)=(sin(x)+cos(x))(1-sin(x)cos(x))<BR>\n" );
document.write( "starting from the left-hand side,<BR>\n" );
document.write( "sin^3+cos^3<BR>\n" );
document.write( "using sum of cubes formula,<BR>\n" );
document.write( "=(sin+cos)(sin^2-sincos+cos^2)<BR>\n" );
document.write( "=(sin+cos)(1-sincos)<BR>\n" );
document.write( "verified: left-hand side=right-hand side </SPAN>\n" );
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