document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=914721>Question 914721</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Verify the following trig identities\r<BR>\n" );
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document.write( "1)  sin^2x/cosx=secx-cosx\r<BR>\n" );
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document.write( "2)  1+sinx/1-sinx - 1-sinx/1+sinx = 4tanx secx\r<BR>\n" );
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document.write( "3)  sin^3x+cos^3x = (cosx+sinx)(1-cosx sinx)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #555284 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=555284\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Verify the following trig identities<BR>\n" );
document.write( "1) sin^2x/cosx=secx-cosx<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%5E2%28x%29%2Fcos%28x%29%0D%0A=%281-cos%5E2%28x%29%29%2Fcos%28x%29%0D%0A=1%2Fcos%28x%29-cos%5E2%28x%29%2Fcos%28x%29%0D%0A=sec%28x%29-cos%28x%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "..<BR>\n" );
document.write( "2) 1+sinx/1-sinx - 1-sinx/1+sinx = 4tanx secx<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2Bsinx%29%2F%281-sinx%29-%281-sinx%29%2F%281%2Bsinx%29 ALIGN=MIDDLE  ALT=\"%281%2Bsinx%29%2F%281-sinx%29-%281-sinx%29%2F%281%2Bsinx%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%281%2Bsinx%29%5E2-%281-sinx%29%5E2%29%2F%281%2Bsinx%29%281-sinx%29%29 ALIGN=MIDDLE  ALT=\"%28%281%2Bsinx%29%5E2-%281-sinx%29%5E2%29%2F%281%2Bsinx%29%281-sinx%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%281%2B2sinx%2Bsin%5E2%28x%29%29-%281-2sinx%2Bsin%5E2%28x%29%29%29%2F%281-sin%5E2%28x%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2B2sinx%2Bsin%5E2%28x%29-1%2B2sinx-sin%5E2%28x%29%29%2F%281-sin%5E2%28x%29%29 ALIGN=MIDDLE  ALT=\"%281%2B2sinx%2Bsin%5E2%28x%29-1%2B2sinx-sin%5E2%28x%29%29%2F%281-sin%5E2%28x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284sinx%2Fcos%5E2%28x%29%29=%284sinx%2Fcosx%29%281%2Fcosx%29=4tanxsecx ALIGN=MIDDLE  ALT=\"%284sinx%2Fcos%5E2%28x%29%29=%284sinx%2Fcosx%29%281%2Fcosx%29=4tanxsecx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "..<BR>\n" );
document.write( "3) sin^3x+cos^3x = (cosx+sinx)(1-cosx sinx)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%5E3%28x%29%2Bcos%5E3%28x%29=%28sinx%2Bcosx%29%28sin%5E2%28x%29-sinxcosx%2Bcos%5E2%28x%29%29=%28sinx%2Bcosx%29%281-sinxcosx%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "note: use sum of cubes formula </SPAN>\n" );
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