document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1136231>Question 1136231</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Prove that (sin³A + cos³A)/(sinA + cosA) + (sin³A - cos³A)/(sinA - cosA) = 2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #753998 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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/cgi-bin/show-face.mpl?user=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=753998\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Prove that \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sin%5E3%28A%29+%2B+cos%5E3%28A%29%29%2F%28sin%28A%29+%2B+cos%28A%29%29+%2B+%28sin%5E3%28A%29+-+cos%5E3%28A%29%29%2F%28sin%28A%29+-+cos%28A%29%29+=+2+ ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "use Factoring a Sum of Cubes rule:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E3+%2B+b%5E3+=+%28a+%2B+b%29%28a%5E2+-+ab+%2B+b%5E2%29 ALIGN=MIDDLE  ALT=\"a%5E3+%2B+b%5E3+=+%28a+%2B+b%29%28a%5E2+-+ab+%2B+b%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28sin%28A%29+%2B+cos%28A%29%29%28sin%5E2%28A%29+-2sin%28A%29cos%28A%29%2B+cos%5E2%28A%29%29%29%2F%28sin%28A%29+%2B+cos%28A%29%29+%2B+%0D%0A%28%28sin%28A%29+-+cos%28A%29%29%28sin%5E2%28A%29+%2B2sin%28A%29cos%28A%29%2B+cos%5E2%28A%29%29%29%2F%28sin%28A%29+-+cos%28A%29%29+=+2 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >  .........simplify\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cross%28%28sin%28A%29+%2B+cos%28A%29%29%29%28sin%5E2%28A%29+-2sin%28A%29cos%28A%29%2B+cos%5E2%28A%29%29%29%2Fcross%28%28sin%28A%29+%2B+cos%28A%29%29%29+%2B+%0D%0A%28cross%28%28sin%28A%29+-+cos%28A%29%29%29%28sin%5E2%28A%29+%2B2sin%28A%29cos%28A%29%2B+cos%5E2%28A%29%29%29%2Fcross%28%28sin%28A%29+-+cos%28A%29%29%29+=+2++ ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sin%5E2%28A%29+-2sin%28A%29cos%28A%29%2B+cos%5E2%28A%29%29+%2B+%28sin%5E2%28A%29+%2B2sin%28A%29cos%28A%29%2B+cos%5E2%28A%29%29+=+2+ ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%5E2%28A%29+-cross%282sin%28A%29cos%28A%29%29%2B+cos%5E2%28A%29%2B+sin%5E2%28A%29+%2Bcross%282sin%28A%29cos%28A%29%29%2B+cos%5E2%28A%29+=+2 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%5E2%28A%29+%2B+cos%5E2%28A%29+%2B+sin%5E2%28A%29+%2B+cos%5E2%28A%29+=+2+ ALIGN=MIDDLE  ALT=\"sin%5E2%28A%29+%2B+cos%5E2%28A%29+%2B+sin%5E2%28A%29+%2B+cos%5E2%28A%29+=+2+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
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